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.
Related Questions
A bulb is rated 100 W-220 V. It is being used at 110 V supply. The power consumed by bulb is:
- 100 W
- half of 100 W
- nearly 25 W
- none of the above
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