At small distance from the earth the colour of lightning is
white
pink
violet
none of these
In a gold leaf electroscope, its stem is made up of
wood
brass
glass
ebonite
An ammeter is connected in a circuit in
Series
Parallel
Either in series or in parallel
None of these
Generally connecting wires are made up of
Cu -Al
Ni -C
Tungsten
How many electron can be accommodate in the 3rd orbit of an atom.
2
8
18
32
Which of the following is an example for conductor?
rubber
cotton
mercury
The electrons which are in orbits close to the nucleus are called
bound electrons
valence electrons
free electrons
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
