Electrostatics MCQs | Electrostatics Choice Questions with Answers
Questions
1
To relieve discomfort of allergy sufferers in homes, we use
Answer: electrostatic air cleaner
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5
Two charges are placed at a certain distance. If the magnitude of each charge is doubled the force will become
Answer: 4 times of its original value
7
If an electrons is allowed to move along the field in a non uniform electric field then it will follow
Answer: Straight line
8
If F is force acting on test charge qo, electric field intensity E would be given by
Answer: E = F/qo
9
Property of material due to which it attracts or repels other objects is
Answer: charge
10
If medium between two charges is air, then value of constant k in SI units will be
Answer: 9 × 109 Nm²C-2
11
Charge on capacitor plates is directly proportional to
Answer: potential difference
12
A capacitor holds 0.03 C of charge when fully charged by a 6V battery. To hold 2C of charge, voltage required would be
Answer: 400V
13
When we rub a glass rod with a silk cloth then
Answer: glass rod acquires positive charge while silk acquires negative charges
14
Electric charge of 100 ?C is 13cm apart from another charge 16.9?C electric force between them is
Answer: 900N
15
Work done in moving a point charge from one point to another point of equipotential surface is
Answer: zero
16
If mica sheet is placed between the plates of a capacitor the capacity
Answer: increases
17
Thunderclouds are charged by friction between
Answer: water molecules and air
19
To distinguish between insulators and conductors, we can use
Answer: electroscope
