Questionnaire in the form of MCQs, the questions may have one or more correct answers.

Question 1 :

Work Done In moving from stable to unstable equilibrium position in electric field?

• PE
• √2PE
• PE/2
• 2PE

Question 2 :

A positively charged ring is in y - z plane with its centre at origin. A positive test charge qo , held at origin is released along x-axis, then its speed?

• Increases continuously
• Decreases continuously
• First increases then decreases
• First decreases then increases

Question 3 :

The potential at a point 0.1 m from an isolated point charge is + 100 volt. The nature of the point charge is ?

• Positive
• Negative
• Zero
• Either positive or zero

Question 4 :

The work done in moving an electric charge q in an electric field does not depend upon

• Mass of the particle
• Potential difference between two points
• Magnitude of charge
• All of these

Question 5 :

If 50 joule of work must be done to move an electric charge of 2 C from a point, where potential is -10 volt to another point, where potential is V volt, the value of V is?

• 5 V
• - 15 V
• + 15 V
• + 10 V

Question 6 :

1000 small water drops each of capacitance C join together to form one large spherical drop. The capacitance of bigger sphere is?

• C
• 10 C
• 100 C
• 1000C

Question 7 :

A hollow metallic sphere of radius 10 cm is charged such that potential of its surface is 80 V. The potential at the centre of the sphere would be?

• 80 V
• 800 V
• 8 V
• Zero

Question 8 :

Some charge is being given to a conductor. Then its potential is?

• Maximum at surface
• Maximum at centre
• Remain same throughout the conductor
• Maximum somewhere between surface and centre