Electric Charge and Its Properties

How can you identify an insulator and conductor by using an electroscope?

What is electrification explain?

What is electrical repulsion?

Why repulsion is the sure test of electric field?

A gold leaf electroscope is used_____.

Why is it important to know the difference between conductors and insulators?

How do you define conductors and insulators?

How you would determine the conductors and insulators by using electroscope?

Number of electrons flowing per second is a conductor carrying a current of $9A$ is _____

Electrons have negligible mass and charge.

What is the difference between electric charge and mass.

If five charges are as follows $+q, +3q, -2q, -6q, +8q$, then what is total charge value?

For the addition of the charge, which one of the given things should be taken care of?

For the invariance of the charge, which of the given can be varied?

When ${10}^{19}$ electrons are removed from a neutral metal plate, the electric charge on it (in coulomb) is 

When a positively charged body is brought near the metal disc of a neutral electroscope, its leaves -

If an object has a net charge of $-1 \mathrm{C}$, the number of excess electrons possessed by it is?

A metallic ion ${\mathrm{M}}^{2+}$ has an electronic configuration of 2, 8, 14 and the ionic weight is 56 amu. The number of neutrons in its nucleus is

${10}^9$ electrons move out of a body to another body every second. then what is the time required to get a total charge of $\mathrm{ }1\mathrm{ }\mathrm{C}$ on the other body ?

The Earth's potential is taken as _____.