154660
The emf induced in the secondary coil due to unit rate of change of current in the primary is called
1 Impedance of two coils
2 Reactance of two coils
3 Mutual induction of two coils
4 Self induction of a coil
Explanation:
C The emf induced in secondary coil due to unit rate of change of current in the primary is called mutual induction of two coils.
AP EAMCET-07.10.2020
Electro Magnetic Induction
154665
When a rectangular coil is rotated in a uniform magnetic field about an axis passing through its centre and perpendicular to the field, the emf induced in the coil varies.
1 linearly
2 exponentially
3 sinusoidally
4 laterally
Explanation:
C When a rectangular coil is rotated in uniform magnetic field about an axis passing through its centre and perpendicular to the field, the induced emf in coil varies sinusoidally.
AP EAMCET (17.09.2020) Shift-II
Electro Magnetic Induction
154697
An induced emf has
1 a direction same as field direction
2 a direction opposite to the field direction
3 no direction of its own
4 None of the above
Explanation:
B According lenz's law the direction of induced emf and current flow such a direction that it opposes the cause that produced it.
VITEEE-2015
Electro Magnetic Induction
154698
A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron
1 speed will decrease
2 speed will increase
3 will turn towards left of direction of motion
4 will turn towards right of direction a motion
Explanation:
A When, E, v \& B are along same direction. Then magnetic force experience by electron is zero while electric force is acting opposite to velocity of an electron, so, velocity of electron will decrease.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Electro Magnetic Induction
154660
The emf induced in the secondary coil due to unit rate of change of current in the primary is called
1 Impedance of two coils
2 Reactance of two coils
3 Mutual induction of two coils
4 Self induction of a coil
Explanation:
C The emf induced in secondary coil due to unit rate of change of current in the primary is called mutual induction of two coils.
AP EAMCET-07.10.2020
Electro Magnetic Induction
154665
When a rectangular coil is rotated in a uniform magnetic field about an axis passing through its centre and perpendicular to the field, the emf induced in the coil varies.
1 linearly
2 exponentially
3 sinusoidally
4 laterally
Explanation:
C When a rectangular coil is rotated in uniform magnetic field about an axis passing through its centre and perpendicular to the field, the induced emf in coil varies sinusoidally.
AP EAMCET (17.09.2020) Shift-II
Electro Magnetic Induction
154697
An induced emf has
1 a direction same as field direction
2 a direction opposite to the field direction
3 no direction of its own
4 None of the above
Explanation:
B According lenz's law the direction of induced emf and current flow such a direction that it opposes the cause that produced it.
VITEEE-2015
Electro Magnetic Induction
154698
A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron
1 speed will decrease
2 speed will increase
3 will turn towards left of direction of motion
4 will turn towards right of direction a motion
Explanation:
A When, E, v \& B are along same direction. Then magnetic force experience by electron is zero while electric force is acting opposite to velocity of an electron, so, velocity of electron will decrease.
154660
The emf induced in the secondary coil due to unit rate of change of current in the primary is called
1 Impedance of two coils
2 Reactance of two coils
3 Mutual induction of two coils
4 Self induction of a coil
Explanation:
C The emf induced in secondary coil due to unit rate of change of current in the primary is called mutual induction of two coils.
AP EAMCET-07.10.2020
Electro Magnetic Induction
154665
When a rectangular coil is rotated in a uniform magnetic field about an axis passing through its centre and perpendicular to the field, the emf induced in the coil varies.
1 linearly
2 exponentially
3 sinusoidally
4 laterally
Explanation:
C When a rectangular coil is rotated in uniform magnetic field about an axis passing through its centre and perpendicular to the field, the induced emf in coil varies sinusoidally.
AP EAMCET (17.09.2020) Shift-II
Electro Magnetic Induction
154697
An induced emf has
1 a direction same as field direction
2 a direction opposite to the field direction
3 no direction of its own
4 None of the above
Explanation:
B According lenz's law the direction of induced emf and current flow such a direction that it opposes the cause that produced it.
VITEEE-2015
Electro Magnetic Induction
154698
A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron
1 speed will decrease
2 speed will increase
3 will turn towards left of direction of motion
4 will turn towards right of direction a motion
Explanation:
A When, E, v \& B are along same direction. Then magnetic force experience by electron is zero while electric force is acting opposite to velocity of an electron, so, velocity of electron will decrease.
154660
The emf induced in the secondary coil due to unit rate of change of current in the primary is called
1 Impedance of two coils
2 Reactance of two coils
3 Mutual induction of two coils
4 Self induction of a coil
Explanation:
C The emf induced in secondary coil due to unit rate of change of current in the primary is called mutual induction of two coils.
AP EAMCET-07.10.2020
Electro Magnetic Induction
154665
When a rectangular coil is rotated in a uniform magnetic field about an axis passing through its centre and perpendicular to the field, the emf induced in the coil varies.
1 linearly
2 exponentially
3 sinusoidally
4 laterally
Explanation:
C When a rectangular coil is rotated in uniform magnetic field about an axis passing through its centre and perpendicular to the field, the induced emf in coil varies sinusoidally.
AP EAMCET (17.09.2020) Shift-II
Electro Magnetic Induction
154697
An induced emf has
1 a direction same as field direction
2 a direction opposite to the field direction
3 no direction of its own
4 None of the above
Explanation:
B According lenz's law the direction of induced emf and current flow such a direction that it opposes the cause that produced it.
VITEEE-2015
Electro Magnetic Induction
154698
A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron
1 speed will decrease
2 speed will increase
3 will turn towards left of direction of motion
4 will turn towards right of direction a motion
Explanation:
A When, E, v \& B are along same direction. Then magnetic force experience by electron is zero while electric force is acting opposite to velocity of an electron, so, velocity of electron will decrease.