A device which stores charge is called

To relieve the discomfort of allergy sufferers in homes, we use

A. vacuum cleaner

B. electrostatic air cleaner

C. wind cleaner

D. none of above

Coulomb's law is only true for point charges whose sizes are

A. medium

B. very large

C. very small

D. large

As per Coulomb's law, the force of attraction or repulsion between two point charges is directly proportional to the

A. sum of the magnitude of charges

B. square of the distance between them

C. product of the magnitude of charges

D. cube of the distance

If F is the force acting on the test charge qo, the electric field intensity E would be given by

A. E = F - q₀

B. E = F/q₀

C. E = F + q₀

D. E = q₀/F

The ability of a capacitor to store charge depends upon

A. area of plates

B. distance between plates

C. type of dielectric used

D. all of above