At room temperature, electrons cannot escape the metal surface due to ………….. of atomic nucleus:
Repulsive forces
Attractive forces
Gravitational forces
Electromagnetic forces
The brain of any computer system is:
Monitor
Memory
CPU
Control unit
If there is no extension in the spring then the position is called:
Equilibrium position
unequilibrium
neutral equilibrium
stable equilibrium
In variable capacitor, dielectric medium is:
Paper
Air
Mica
Ceramic
Give the number of factors which affect the ability of a capacitor to store charge.
In fixed capacitor dielectric used is:
Metal
Paper & mica
