303387
Which of the following devices can be used to break an electric circuit:
1 Cell
2 Bulb
3 Switch
4 None of these
Explanation:
Switch The switch is a simple device that is used to either break the electric circuit or to complete it.
ELECTRIC CURRENT AND ITS EFFECTS
303388
What is incorrect about CFLs?
1 They gives out a lot of heat.
2 They reduce wastage.
3 They can be fixed in the ordinary bulb holders.
4 None of these.
Explanation:
They gives out a lot of heat. Compact fluorescent lamps (CFLs) give out less heat then ordinary bulbs, reduce wastage and can be fixed in the ordinary bulb holders.
ELECTRIC CURRENT AND ITS EFFECTS
303389
An electric iron is based upon the principle of:
1 Heating effect of current
2 Magnetic effect of current
3 Chemical effect of current
4 None of these
Explanation:
Heating effect of current An electric iron is based on the principle of the heating effect of current. When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called the heating effect of current.
ELECTRIC CURRENT AND ITS EFFECTS
303390
The strength of the magnetic field due to a solenoid can be increased by:
1 Decreasing the current strength in the solenoid.
303387
Which of the following devices can be used to break an electric circuit:
1 Cell
2 Bulb
3 Switch
4 None of these
Explanation:
Switch The switch is a simple device that is used to either break the electric circuit or to complete it.
ELECTRIC CURRENT AND ITS EFFECTS
303388
What is incorrect about CFLs?
1 They gives out a lot of heat.
2 They reduce wastage.
3 They can be fixed in the ordinary bulb holders.
4 None of these.
Explanation:
They gives out a lot of heat. Compact fluorescent lamps (CFLs) give out less heat then ordinary bulbs, reduce wastage and can be fixed in the ordinary bulb holders.
ELECTRIC CURRENT AND ITS EFFECTS
303389
An electric iron is based upon the principle of:
1 Heating effect of current
2 Magnetic effect of current
3 Chemical effect of current
4 None of these
Explanation:
Heating effect of current An electric iron is based on the principle of the heating effect of current. When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called the heating effect of current.
ELECTRIC CURRENT AND ITS EFFECTS
303390
The strength of the magnetic field due to a solenoid can be increased by:
1 Decreasing the current strength in the solenoid.
303387
Which of the following devices can be used to break an electric circuit:
1 Cell
2 Bulb
3 Switch
4 None of these
Explanation:
Switch The switch is a simple device that is used to either break the electric circuit or to complete it.
ELECTRIC CURRENT AND ITS EFFECTS
303388
What is incorrect about CFLs?
1 They gives out a lot of heat.
2 They reduce wastage.
3 They can be fixed in the ordinary bulb holders.
4 None of these.
Explanation:
They gives out a lot of heat. Compact fluorescent lamps (CFLs) give out less heat then ordinary bulbs, reduce wastage and can be fixed in the ordinary bulb holders.
ELECTRIC CURRENT AND ITS EFFECTS
303389
An electric iron is based upon the principle of:
1 Heating effect of current
2 Magnetic effect of current
3 Chemical effect of current
4 None of these
Explanation:
Heating effect of current An electric iron is based on the principle of the heating effect of current. When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called the heating effect of current.
ELECTRIC CURRENT AND ITS EFFECTS
303390
The strength of the magnetic field due to a solenoid can be increased by:
1 Decreasing the current strength in the solenoid.
NEET Test Series from KOTA - 10 Papers In MS WORD
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ELECTRIC CURRENT AND ITS EFFECTS
303387
Which of the following devices can be used to break an electric circuit:
1 Cell
2 Bulb
3 Switch
4 None of these
Explanation:
Switch The switch is a simple device that is used to either break the electric circuit or to complete it.
ELECTRIC CURRENT AND ITS EFFECTS
303388
What is incorrect about CFLs?
1 They gives out a lot of heat.
2 They reduce wastage.
3 They can be fixed in the ordinary bulb holders.
4 None of these.
Explanation:
They gives out a lot of heat. Compact fluorescent lamps (CFLs) give out less heat then ordinary bulbs, reduce wastage and can be fixed in the ordinary bulb holders.
ELECTRIC CURRENT AND ITS EFFECTS
303389
An electric iron is based upon the principle of:
1 Heating effect of current
2 Magnetic effect of current
3 Chemical effect of current
4 None of these
Explanation:
Heating effect of current An electric iron is based on the principle of the heating effect of current. When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called the heating effect of current.
ELECTRIC CURRENT AND ITS EFFECTS
303390
The strength of the magnetic field due to a solenoid can be increased by:
1 Decreasing the current strength in the solenoid.
