JEE Mock Test for Physics and Chemistry

The electric field at a distance from a point charge is given by:

The force between two charges and is when they are separated by a distance of 1 m in air. What is the force between them if the distance is doubled?

• 4.5 N

• 9 N

• 18 N

• 36 N

Electric flux through a closed surface enclosing a charge is:

• Zero

The electric field due to a uniformly charged infinite line at a distance is:

If the potential at a point is 5V and the electric field is , the work done in moving a charge of 1 C from that point to infinity is:

• 5 J

• 10 J

• 15 J

• Zero

The electric field inside a uniformly charged spherical shell is:

• Zero

• Constant

• Varies linearly with radius

A point charge is placed at the center of a sphere of radius . The electric field at a distance from the center (where is greater than ) is:

• Zero

• Infinite

The flux through a spherical surface of radius enclosing a charge is:

Gauss’s Law is used to calculate:

• Gravitational field

• Electric field

• Magnetic field

• Electric potential

The electric potential at a point in a uniform electric field is:

• Zero

• Maximum

• Minimum

• Dependent on the distance from the field