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प्रश्न
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उत्तर
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संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use:
Ammeter.
What is an electric current?
Consider the circuit given below:
(a) In which circuit are the lamps dimmest?
(b) In which circuit or circuits are the lamps of equal brightness to the lamps in circuit (i)?
(c) Which circuit gives out the maximum light?
The rating of a fuse connected in the lighting circuit is:
(a) 15 A (b) 5 A (c) 10 A (d) Zero
Electrical power P is given by the expression P = (Q × V) ÷ time
(a) What do the symbols Q and V represent?
(b) Express the power P in terms of current and resistance explaining the meanings of symbols used there in.
Kilowatt hour is the unit of
One unit of electrical energy consumed is equal to 1000 kilowatt-hour.
Name any two devices, which are working on the heating effect of the electric current.
