What is the amount of current passing through an electric heater, if it takes 1800C charge pass through it in 3 minute:
16 A
10 A
100 A
0.1 A
Which instrument is used to detect current:
Galvanometer
Voltmeter
Ammeter
Electroscope
earth wire is connected with those appliances whose casing is made of:
metals
wood
glass
plastic
diamond des not conduct electricity, because it has no:
free electrons
free protons
free neutrons
free positive charge
Circuit breaker works on the principle of:
Electric current
Magnetism
Electromagnetism
Electrostatics
The current which does not change its direction is called:
A.C
D.C
Conventional
Transient current
