The velocity of light in air
3 x 108m|s
3 x 107 m|s
3.8 x 108m|s
5m|s
An ammeter is connected in a circuit in
Series
Parallel
Either in series or in parallel
None of these
In a gold leaf electroscope, its stem is made up of
wood
brass
glass
ebonite
The electrons of the outer most orbit are called
free electrons
positive ions
valence electrons
bound electrons
Generally connecting wires are made up of
Cu -Al
Ni -C
Tungsten
The mass of an electron is nearly ___ times the mass of proton
Which of the following is an example for insulator?
Mercury
Wood
Impure water
Cu
