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प्रश्न
Name the device used these days in place of electric fuses in electrical circuits.
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उत्तर
Miniature circuit breaker (MCB) is used these days in place of electric fuses in electrical circuits.
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संबंधित प्रश्न
Draw circuit symbols for
an open switch
Find the odd one out and justify it.
Fuse wire, M.C.B., Rubber Gloves, Generator
In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?
______ is the device used to close or open an electric circuit.
______ is the device used to close or open an electric circuit.
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be
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| (i) | (ii) | (iii) |
In the following arrangement shown in the following figure, the bulb will not glow if the ends A and B are connected with
Will the bulb glow in the circuit shown in the following figure? Explain.
An electric motor rated 1100 W is connected to 220 V mains. Find:
- The current drawn from the mains,
- Electric energy consumed if the motor is used for 5 hours daily for 6 days.
- Total cost of energy consumed if the rate of one unit is 5.
