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.
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
Longer line in the symbol for cell represents its ______ terminal.
Zubeda made an electric circuit using a cell holder shown in Figure, a switch and a bulb. When she put the switch in the ‘ON’ position, the bulb did not glow. Help Zubeda in identifying the possible defects in the circuit.
You are provided with a torch bulb, a cell and two plastic coated f metal wires. Draw a diagram to show a complete circuit to light the bulb.
The diagram given below shows a bulb connected with a cell having terminals A and B. Mark the direction of current in the bulb.
Mark the correct choice
- Assertion: In a simple battery circuit the point of highest potential is the positive terminal of the battery.
- Reason: The current flows towards the point of the highest potential
How many electrons are passing per second in a circuit in which there is a current of 5 A?
______ are used to connect devices.
Identify the circuit in which the electrical components have been properly connected.
![]() |
![]() |
![]() |
![]() |
(i) | (ii) | (iii) | (iv) |
A combination of two or more cells is called a _________.
Unscramble the following words:
HICWTS