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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
One coulomb of charge flows through any cross-section of a conductor in 1 second. What is the current flowing through the conductor?
(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:
(i) Total resistance.
(ii) Current shown by the ammeter A
Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
(a) Which circuit would have the highest voltage across each bulb?
Draw a circuit diagram showing two electric lamps connected in parallel together with a cell and a switch that works both lamps. Mark an â’¶ on your diagram to show where an ammeter should be placed to measure the current.
A wire of length 5 m has a resistance of 2.0 Ω calculate:
(a) the resistance of wire of length 1 m
(b) the equivalent resistance if two such wires each of length 2 m are joined in parallel.
(c) the resistance of 1 m length of wire of same material but of half diameter.
At the time of short circuit, the electric current in the circuit ______.
The power of an electric device is a product of ______ and ______.
The flow of electric charge per unit time is called potential difference.
