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Chapter 13 - Electrostatics - 3
1.
The ratio__________ is called relative permittivity.
a) C
i
/C
f
b) C
med
/C
vac
c) C
vac
/C
med
2.
Two equal and opposite charges separated by small distance are said to constitute a_____________.
a) Dipole
b) Unipole
c) Bipole
3.
A substance contains:
a) Only positive charges
b) None of these
c) Both positive and negative charges
d) Only negative charges
4.
The practical application of electrostatic induction is:
a) Photocopier
b) Laser
c) All of the above
d) X-Ray machine
5.
Ordinary Hydrogen atom contains:
a) One Neutron
b) Two Neutrons
c) None of these
d) No Neutron
6.
The SI unit of permittivity of free space is:
a) 9x109 Nm
2
/C
2
b) 8.85x10
-12
Nm
2
/C
2
c) 10x10
9
Nm
2
/C
2
d) 8.85x10
12
Nm
2
/C
2
7.
Michael Faraday determined the:
a) Origin of Gravitational force
b) Origin of electrical force
c) All of the above
d) Method of transfer of electrical force
8.
The idea of electric lines of force was given by:
a) Milikans
b) Coulomb
c) Faraday
d) Fleming
9.
The electric lines of force determines the strength of an:
a) Electric field
b) Magnetic field
c) Gravitational field
d) All of the above
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