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 is an example for conductor?
rubber
cotton
mercury
SI unit of current
volt
Joule
Ampere
None of these
When conductor are joined in series the resistance
become zero
increases
decreases
no change
How many electron can be accommodate in the 3rd orbit of an atom.
2
8
18
32
Charge of an electron
0
1
1.6 x 10-19
9.8 x 106
A cell is used to
measure current in circuit
provide current in circuit
check current in circuit
prevent current in circuit
The device used to detect the presence of very weak current in the circuit.
Ammeter
Voltmeter
Galvanometer
Rheostat
