The commercial unit of electrical energy is:
Joule
Watt
Kilowatt hour
Electron volt
100x103 A= :
10-3 A
10-2 A
10 A
10-1A
Joule’s law is W=
IR/t
IRt2
IR2t
I2Rt
The property of substance, which opposes the flow of current through it is called:
Resistance
Reactance
Resistivity
None
the range of galvanometer to measure current is:
few amperes
few micro amperes
few milli amperes
mega amperes
A thermistor is a dependent resistors:
Heat
temperature
energy
mass