Physics
Write an expression for the electrical power spent in flow of current through a conductor in terms of (a) resistance and potential difference, (b) current and resistance.
Current Electricity
40 Likes
Answer
(a) Expression for electrical power spent in flow of current through a conductor in terms of resistance and potential difference is —
(b) Expression for electrical power spent in flow of current through a conductor in terms of current and resistance is —
Answered By
24 Likes
Related Questions
Assertion (A): In parallel combination of electrical appliances, total power consumption is equal to the sum of the power of individual appliances.
Reason (R): In parallel combination, the voltage across each appliance is the same.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Write an expression for the electrical energy spent in flow of current through an electrical appliance in terms of current, resistance and time.
State the S.I. unit of electrical power.
Name the physical quantity which is measured in (i) kW, (ii) kWh. (iii) Wh