Advertisements
Advertisements
प्रश्न
True or False – If False give the correct answer
The fuse wire does not melts whenever there is overload in the wiring.
विकल्प
True
False
Advertisements
उत्तर
False.
The fuse wire melts whenever there is overload in the wiring.
APPEARS IN
संबंधित प्रश्न
Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor.
Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
Explain Statement 1 with the help of Statement 2.
The ‘live’ and the ‘neutral’ wires have potential difference of _______.
A fuse wire repeatedly gets burnt when used with a good heater. It is advised to use a fuse wire of:
Name two electric devices for each where
- heating effect of current is used and
- magnetic effect of current is used.
Paheli took a wire of length 10 cm. Boojho took a wire of 5 cm of the same material and thickness. Both of them connected the wires as shown in the circuit given in the following figure. The current flowing in both the circuits is the same.
- Will the heat produced in both cases be equal? Explain.
- Will the heat produced be the same if the wires taken by them are of equal lengths but of different thickness? Explain.

Explain the working of an electric fuse.
A trip switch is a ______ safety device.
If 220 V potential difference is applied across an electric bulb, a current of 0.45 A flows in the bulb. What must be the power of the bulb?
State the law that explains the heating effect of current with respect to the measurable properties in an electrical circuit.
An electric iron of resistance 20 Ω draws a current of 5 A. The heat developed in the iron in 30 seconds is ______.
