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प्रश्न
MCB is used to protect household electrical appliances.
विकल्प
True
False
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उत्तर
MCB is used to protect household electrical appliances - true.
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संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use:
Rheostat (variable resistance)
Consider the circuit given below when A, B and C are three identical light bulbs of constant resistance. 
(a) List the bulbs in order of increasing brightness.
(b) If C burns out, what will be the brightness of A now compared with before?
(c) If B burns out instead, what will be the brightness of A and C compared with before?
Complete the following sentence:
Fuse wire has a ............ Melting point and it is made of an alloy of ......... and if the current in a circuit rises too high, the fuse wire ...........
Define the following:
Electromotive force
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The energy dissipated in the bulb in 10 minutes.
What is the speed of electric current?
One unit of electrical energy consumed is equal to 1000 kilowatt-hour.
Which of the following correctly represents the formula for electric current?
Conventional current is defined as the direction in which which type of charge would flow?
