Advertisements
Advertisements
प्रश्न
An electrician is carrying out some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response.
Advertisements
उत्तर
- No. The electrician cannot be allowed to replace the fuse in the house with a piece of wire. This is because every wire cannot be used as a fuse filament.
- A fuse filament must have a low melting point such that it could melt and break in response to a large amount of current. Most of the wires have high melting points.
- So, we should always use ISI-marked fuses in our houses to prevent short circuits.
APPEARS IN
संबंधित प्रश्न
Draw the circuit diagram to represent the circuit shown in the figure.

The bulb in the circuit shown in Figure does not glow. Can you identify the problem? Make necessary changes in the circuit to make the bulb glow.

The combination of two or more cells is called a ______.
When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks.
In the circuit shown in figure would any of the bulbs glow when the switch is in the ‘OFF’ position?

Select the correct alternative
Electricity can flow through
Draw a circuit diagram for a bulb connected to a cell with a switch. Mark arrow in the diagram to indicate the direction of flow of current.
How many electrons are passing per second in a circuit in which there is a current of 5 A?
In the circuit shown in figure, what will be the order in which the bulbs A, B and C will glow when the switch is moved to the ‘ON’ position?

______ is an instrument used in electric circuits to find the quantity of current flowing through the circuit.
