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प्रश्न
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.
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उत्तर
(a) Q represents Charge and V represents Voltage.
(b) Electrical Power , P = I2R
where I : Current
and R : Resistance
संबंधित प्रश्न
If the current through a floodlamp is 5 A, what charge passed in 10 seconds?
(a) 0.5 C
(b) 2 C
(c) 5 C
(d) 50 C
State the factors on which the strength of electric current flowing in a given conductor depends.
Name two effects produced by electric current.
In the network shown in the following adjacent Figure, calculate the equivalent resistance between the points.
- A and B
- A and C
What is the function of a step-up transformer?
Water : pipe :: Electric current : ______.
MCB is used to protect household electrical appliances.
Problems for practice:
If 5A current flows through a circuit, then convert the current in terms of microampere?
