Advertisements
Advertisements
प्रश्न
उत्तर
The potential difference between two points may be defined as the work done in moving a unit positive charge from one point to the other.
APPEARS IN
संबंधित प्रश्न
What determines the rate at which energy is delivered by a current?
What is consumed using different electrical appliances, for which electricity bills are paid?
A current passes through a resistor. Let K1 and K2 represent the average kinetic energy of the conduction electrons and the metal ions, respectively.
An electric bulb, when connected across a power supply of 220 V, consumes a power of 60 W. If the supply drops to 180 V, what will be the power consumed? If the supply is suddenly increased to 240 V, what will be the power consumed?
Define 1 kilowatt hour.
What is the function of the split rings in a d.c. motor?
A battery of e.m.f. 12V and internal resistance 1.6 Ω is connected to two resistors of 4Ω and 6Ω connected in parallel. Calculate:
(i) the current drawn from the battery,
(ii) the power dissipated in each resistor,
(ii)the total power supplied by the battery.
What is the meaning of electric power of an electrical device? Write its SI unit.
