Electric Bulb and Electric Fuse
Trending Questions
- Fuse melts down if the current is less than 5 A.
- Fuse allows a current only equal to 5 A through it.
- Fuse produces energy if current is less than 5 A.
- Fuse melts if the current is more than 5 A.
Why is fuse wire used in electric circuits?
- To increase current flowing in the circuit.
For the protection of electrical appliances and circuit.
To prevent insulation.
- To increase the voltage.
In a bulb, electrical energy is converted into:
Light energy
Mechanical energy
Heat energy
Both Heat and Light energy
Which of the following is used as a safety device?
Battery
Filament
Fuse
Switch
Filament of a bulb is made up of:
Tungsten
Copper
Iron
Aluminum
An electric bulb works on which of the following principles:
Both A and B
Magnetic effect of electric current
Heating effect of electric current
Chemical effect of electric current
Which is the component that breaks the electric circuit in case of excess current?
Fuse wire
Voltmeter
Earth wire
Ammeter
For a fuse rated at 5A, the fuse melts if the current in the circuit exceeds 5A.
True
False
- Underloading
- Overloading
- Short circuit
- (b) and (c) above.
When the live wire and the fuse wire come in contact with each other in a circuit, it causes a/an _________.
circuit breaker
short circuit
overloading
earthing