1.
The magnitude of electric force between two point charges becomes 9 times if
2.
Which of the following is a scalar quantity?
3.
The electric field at a point due to a negative point charge is directed
4.
The dimension of electric field is
5.
If both charges are doubled and the distance is also doubled, the electrostatic force becomes
6.
A neutral body can be attracted by a charged body due to
7.
The electric field at the centre of a uniformly charged spherical shell is
8.
Electric field lines originate from
9.
If the charge on each particle becomes three times while distance remains unchanged, force becomes
10.
The electric field intensity at a point is defined as
11.
Which law is used to calculate electric field for highly symmetric charge distributions?
12.
Electric flux through a closed surface depends upon
13.
The unit vector used in Coulomb's law points
14.
When a dielectric medium is introduced between two charges, the electrostatic force
15.
The electric field due to a point charge at infinity is
16.
The electric field due to two equal and opposite charges at a very large distance behaves like
17.
A charge of +2 μC experiences a force of 0.8 N in a uniform electric field. The electric field is
18.
The electric field just outside a positively charged conductor is
19.
The electric field inside a hollow conducting sphere carrying charge is
20.
Which one of the following statements is correct?
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