electric intensity is a quantity:
scalar
vector
base
none of these
To protect the gold leaves of electroscope from the external electric disturbances, the aluminum foil is grounded by a thin wire, which is made up of:
Aluminum
Silver
Copper
Brass
The process by which electrons are emitted by a hot metal surface is known as:
Boiling
Evaporation
Conduction
Thermionic emission
Simplest electrical circuits use:
One wire
Two wires
Four wires
Five wires
The value of K in SI unit is:
9X1020 Nm2C2
8X109Nm2C2
9X109Nm2C2
10X10-9 Nm2C-2
One coulomb is equal to charge of electrons:
6.25x10-19
6.25x1019
6.25x1018
6.25x10-18