151777
The electron drift speed is small and the charge of the electron is also small but still, we obtain large current in a conductor. This is due to:
1 The conducting property of the conductor
2 The resistance of the conductor is small
3 The electron number density of the conductor is small
4 The electron number density of the conductor is enormous
Explanation:
D The conductors are abundant in the concentration of charge (electron) carriers, a conductors has a charge carrier density . This much abundant density of charge carriers makes the electric current higher in magnitude even the drift velocity is small.
Karnataka CET-2006
Current Electricity
151779
Magnitude of drift velocity per unit electric field is
1 Current density
2 Current
3 Resistivity
4 Mobility
Explanation:
D The drift velocity of an electron for a unit electric field is known as mobility of electron.
J and K CET- 2011
Current Electricity
151789
Gases begin to conduct electricity at low pressure because.
1 at low pressure, gases turn into plasma
2 Colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionisation of atoms
3 Atom breaks up into electrons and protons
4 The electrons in atoms can move freely at low pressure.
Explanation:
B Gases begin to conduct electricity at low pressure because colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionization of atoms.
UP CPMT-2009
Current Electricity
151790
In the process of electrolysis the current is carried out inside the electrolyte by
1 Electrons
2 Atoms
3 Positive and negative ions
4 All of the above
Explanation:
C Electrolysis is a process in which electric current is passed to produce a chemical change in a substance. This process is carried out in an electrolytic solution containing positive and negative charged ions in it.
UP CPMT-2011
Current Electricity
151791
The electric current passes through a metallic wire produces heat because of
1 collisions of conduction electrons with each other
2 collisions of the atoms of the metal with each other
3 the energy released in the ionization of the atoms of the metal
4 collisions of the conduction electrons with the atoms of the metallic wire
Explanation:
D A metal wire is a conductor of electricity and has many free electrons. When it is placed in contact with a conducting surface, such as the electric current passing through it, electrons collide with the metal atoms. The electrons collide with the positive ions, therefore the energy of electrons is transferred to ion and they begin to vibrate more violently. As a result heat is produced hence the electric current passing through a metallic wire produces heat because of collision of the conduction electrons with the atoms of the metallic wire.
151777
The electron drift speed is small and the charge of the electron is also small but still, we obtain large current in a conductor. This is due to:
1 The conducting property of the conductor
2 The resistance of the conductor is small
3 The electron number density of the conductor is small
4 The electron number density of the conductor is enormous
Explanation:
D The conductors are abundant in the concentration of charge (electron) carriers, a conductors has a charge carrier density . This much abundant density of charge carriers makes the electric current higher in magnitude even the drift velocity is small.
Karnataka CET-2006
Current Electricity
151779
Magnitude of drift velocity per unit electric field is
1 Current density
2 Current
3 Resistivity
4 Mobility
Explanation:
D The drift velocity of an electron for a unit electric field is known as mobility of electron.
J and K CET- 2011
Current Electricity
151789
Gases begin to conduct electricity at low pressure because.
1 at low pressure, gases turn into plasma
2 Colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionisation of atoms
3 Atom breaks up into electrons and protons
4 The electrons in atoms can move freely at low pressure.
Explanation:
B Gases begin to conduct electricity at low pressure because colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionization of atoms.
UP CPMT-2009
Current Electricity
151790
In the process of electrolysis the current is carried out inside the electrolyte by
1 Electrons
2 Atoms
3 Positive and negative ions
4 All of the above
Explanation:
C Electrolysis is a process in which electric current is passed to produce a chemical change in a substance. This process is carried out in an electrolytic solution containing positive and negative charged ions in it.
UP CPMT-2011
Current Electricity
151791
The electric current passes through a metallic wire produces heat because of
1 collisions of conduction electrons with each other
2 collisions of the atoms of the metal with each other
3 the energy released in the ionization of the atoms of the metal
4 collisions of the conduction electrons with the atoms of the metallic wire
Explanation:
D A metal wire is a conductor of electricity and has many free electrons. When it is placed in contact with a conducting surface, such as the electric current passing through it, electrons collide with the metal atoms. The electrons collide with the positive ions, therefore the energy of electrons is transferred to ion and they begin to vibrate more violently. As a result heat is produced hence the electric current passing through a metallic wire produces heat because of collision of the conduction electrons with the atoms of the metallic wire.
151777
The electron drift speed is small and the charge of the electron is also small but still, we obtain large current in a conductor. This is due to:
1 The conducting property of the conductor
2 The resistance of the conductor is small
3 The electron number density of the conductor is small
4 The electron number density of the conductor is enormous
Explanation:
D The conductors are abundant in the concentration of charge (electron) carriers, a conductors has a charge carrier density . This much abundant density of charge carriers makes the electric current higher in magnitude even the drift velocity is small.
Karnataka CET-2006
Current Electricity
151779
Magnitude of drift velocity per unit electric field is
1 Current density
2 Current
3 Resistivity
4 Mobility
Explanation:
D The drift velocity of an electron for a unit electric field is known as mobility of electron.
J and K CET- 2011
Current Electricity
151789
Gases begin to conduct electricity at low pressure because.
1 at low pressure, gases turn into plasma
2 Colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionisation of atoms
3 Atom breaks up into electrons and protons
4 The electrons in atoms can move freely at low pressure.
Explanation:
B Gases begin to conduct electricity at low pressure because colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionization of atoms.
UP CPMT-2009
Current Electricity
151790
In the process of electrolysis the current is carried out inside the electrolyte by
1 Electrons
2 Atoms
3 Positive and negative ions
4 All of the above
Explanation:
C Electrolysis is a process in which electric current is passed to produce a chemical change in a substance. This process is carried out in an electrolytic solution containing positive and negative charged ions in it.
UP CPMT-2011
Current Electricity
151791
The electric current passes through a metallic wire produces heat because of
1 collisions of conduction electrons with each other
2 collisions of the atoms of the metal with each other
3 the energy released in the ionization of the atoms of the metal
4 collisions of the conduction electrons with the atoms of the metallic wire
Explanation:
D A metal wire is a conductor of electricity and has many free electrons. When it is placed in contact with a conducting surface, such as the electric current passing through it, electrons collide with the metal atoms. The electrons collide with the positive ions, therefore the energy of electrons is transferred to ion and they begin to vibrate more violently. As a result heat is produced hence the electric current passing through a metallic wire produces heat because of collision of the conduction electrons with the atoms of the metallic wire.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Current Electricity
151777
The electron drift speed is small and the charge of the electron is also small but still, we obtain large current in a conductor. This is due to:
1 The conducting property of the conductor
2 The resistance of the conductor is small
3 The electron number density of the conductor is small
4 The electron number density of the conductor is enormous
Explanation:
D The conductors are abundant in the concentration of charge (electron) carriers, a conductors has a charge carrier density . This much abundant density of charge carriers makes the electric current higher in magnitude even the drift velocity is small.
Karnataka CET-2006
Current Electricity
151779
Magnitude of drift velocity per unit electric field is
1 Current density
2 Current
3 Resistivity
4 Mobility
Explanation:
D The drift velocity of an electron for a unit electric field is known as mobility of electron.
J and K CET- 2011
Current Electricity
151789
Gases begin to conduct electricity at low pressure because.
1 at low pressure, gases turn into plasma
2 Colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionisation of atoms
3 Atom breaks up into electrons and protons
4 The electrons in atoms can move freely at low pressure.
Explanation:
B Gases begin to conduct electricity at low pressure because colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionization of atoms.
UP CPMT-2009
Current Electricity
151790
In the process of electrolysis the current is carried out inside the electrolyte by
1 Electrons
2 Atoms
3 Positive and negative ions
4 All of the above
Explanation:
C Electrolysis is a process in which electric current is passed to produce a chemical change in a substance. This process is carried out in an electrolytic solution containing positive and negative charged ions in it.
UP CPMT-2011
Current Electricity
151791
The electric current passes through a metallic wire produces heat because of
1 collisions of conduction electrons with each other
2 collisions of the atoms of the metal with each other
3 the energy released in the ionization of the atoms of the metal
4 collisions of the conduction electrons with the atoms of the metallic wire
Explanation:
D A metal wire is a conductor of electricity and has many free electrons. When it is placed in contact with a conducting surface, such as the electric current passing through it, electrons collide with the metal atoms. The electrons collide with the positive ions, therefore the energy of electrons is transferred to ion and they begin to vibrate more violently. As a result heat is produced hence the electric current passing through a metallic wire produces heat because of collision of the conduction electrons with the atoms of the metallic wire.
151777
The electron drift speed is small and the charge of the electron is also small but still, we obtain large current in a conductor. This is due to:
1 The conducting property of the conductor
2 The resistance of the conductor is small
3 The electron number density of the conductor is small
4 The electron number density of the conductor is enormous
Explanation:
D The conductors are abundant in the concentration of charge (electron) carriers, a conductors has a charge carrier density . This much abundant density of charge carriers makes the electric current higher in magnitude even the drift velocity is small.
Karnataka CET-2006
Current Electricity
151779
Magnitude of drift velocity per unit electric field is
1 Current density
2 Current
3 Resistivity
4 Mobility
Explanation:
D The drift velocity of an electron for a unit electric field is known as mobility of electron.
J and K CET- 2011
Current Electricity
151789
Gases begin to conduct electricity at low pressure because.
1 at low pressure, gases turn into plasma
2 Colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionisation of atoms
3 Atom breaks up into electrons and protons
4 The electrons in atoms can move freely at low pressure.
Explanation:
B Gases begin to conduct electricity at low pressure because colliding electrons can acquire higher kinetic energy due to increases mean free path leading to ionization of atoms.
UP CPMT-2009
Current Electricity
151790
In the process of electrolysis the current is carried out inside the electrolyte by
1 Electrons
2 Atoms
3 Positive and negative ions
4 All of the above
Explanation:
C Electrolysis is a process in which electric current is passed to produce a chemical change in a substance. This process is carried out in an electrolytic solution containing positive and negative charged ions in it.
UP CPMT-2011
Current Electricity
151791
The electric current passes through a metallic wire produces heat because of
1 collisions of conduction electrons with each other
2 collisions of the atoms of the metal with each other
3 the energy released in the ionization of the atoms of the metal
4 collisions of the conduction electrons with the atoms of the metallic wire
Explanation:
D A metal wire is a conductor of electricity and has many free electrons. When it is placed in contact with a conducting surface, such as the electric current passing through it, electrons collide with the metal atoms. The electrons collide with the positive ions, therefore the energy of electrons is transferred to ion and they begin to vibrate more violently. As a result heat is produced hence the electric current passing through a metallic wire produces heat because of collision of the conduction electrons with the atoms of the metallic wire.