When a charge moves in a circuit, it loses energy in the form of……..
a) heat
b) light
c) waves
d) kinetic energy
Electric power the product of current and ……
a) charge
b) voltage
c) resistance
d) motor
Power P =?
a) I x R
b) I x V
c) I x C
d) I x t
What is the SI unit of power P?
a) volt
b) ampere
c) watt
d) ohm
Explanation:The watt (abbreviated W) is the International System of Units' (SI) standard unit of power (energy per unit time), the equivalent of one jouleper second. The watt is used to specify the rate at which electrical energy isdissipated, or the rate at which electromagnetic energy is radiated, absorbed, or dissipated.
Which letter is used to represent the unit watt?
a) V
b) T
c) W
d) I
A watt is equivalent to …….
a) 1 A x 1Ω
b) 1A x 1V
c) 1I x 1C
d) 1A x 1s
