Question

There are two kinds of charges-positive charge and negative charge. The property which
differentiates the two kinds of charges is called
(a) amount of charge
by polarity of charge
(c) strength of charge
(d) field of charge
12. A method for charging a conductor without bringing a charged object in contact with it is called
(a) electrification
(b) magnetisation
(c) electromagnetic induction
107 electrostatic induction
13. If f E.ds = 0 over a surface, then
(a) the electric field inside the surface and on it is zero.
(b) the electric field inside the surface is necessarily uniform.
6) the number of flux lines entering the surface must be equal to the number of flux lines
leaving it.
(d) all charges must necessarily be outside the surface.
14. A cup contains 250 g of water. The number of negative charges present in the cup of water is
(a) 1.34 x 107C
(6) 1.34 x 1019C
(c) 3.34 x 107C
(d) 1.34 x 10-19 C
15. When the distance between two charged particles is halved, the Coulomb force between them
becomes
(a) one-half
(b) one-fourth (c) double
(d) four times.
16. Two charges are at distance d apart in air. Coulomb force between them is F. If a dielectric
material of dielectric constant K is placed between them, the Coulomb force now becomes
(a) F/K
(6) FK
(c) F/K2
(d) KPF
Electric Charges and Fields 21​

Answer 1

Answer:

1.34x107C is the write answer