Unit of resistance is
ohm
mho
Ampere
Volt
A gold leaf electroscope can
only detect the presence of charge
only test the kind of charge
only measure the charge
detect the presence of charge and test the kind of charge
The insulator is
Cu
Silk
Acidulated water
Human body
Resistance wire is generally made up of
Copper
Aluminium
Nichrome
Carbon
The device used to detect the presence of very weak current in the circuit.
Ammeter
Voltmeter
Galvanometer
Rheostat
The electrons which are in orbits close to the nucleus are called
bound electrons
valence electrons
free electrons
none of these
Which of the following atom has 2 protons and 2 neutrons inside the neucleus and 2 electrons revolving the orbit.
He atom
H atom
Li atom
Na atom
