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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

12 Electric Potential – L1

12 Electric Potential – L1

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Question 1 of 10

1. Question

A two charge system contains 3\(\mu C\) and -4\(\mu C\) charges placed 12 cm apart. Potential energy of the system is

9 J

0.9 J

0.3 J

3 J

Correct

Incorrect
Question 2 of 10

2. Question

Which of the following is correct?

SI unit of Electric Potential is N/C

Electric Potential is vector quantity

Electric Potential is scalar quantity

SI unit of Electric Potential is Joule

Correct

Incorrect
Question 3 of 10

3. Question

Find the electric potential at a point 3 cm away from a point charge \(6 \times 10^{-9}C\)

\(0.3 \times 10^{3}\) Volt

\(0.6 \times 10^{3}\) Volt

\(2 \times 10^{3}\) Volt

\(1.8 \times 10^{3}\) Volt

Correct

Incorrect
Question 4 of 10

4. Question

Electric potential at a point r m away from a dipole of dipole moment p and lying in its equatorial plane is

zero

\(p \over {4 \pi \epsilon_0r^2}\)

\(-p \over {4 \pi \epsilon_0r^2}\)

\(p \over { \pi \epsilon_0r^2}\)

Correct

Incorrect
Question 5 of 10

5. Question

Electric potential at a point due to a negative charge, -q, placed at a distance r from it is

positive

zero

negative

depends on r

Correct

Incorrect
Question 6 of 10

6. Question

The electric potential _________ along the direction of electric field.

increases

decreases

remains constant

depends on the charge placed at the point

Correct

Incorrect
Question 7 of 10

7. Question

Electric potential due to a charge refers to

absolute potential energy per unit charge

difference in potential energy per unit charge between two points

difference in potential energy per unit charge between a point and the infinity

work done by the electric field

Correct

Incorrect
Question 8 of 10

8. Question

Which of the following is wrong?

Electric field due to a point charge varies with \( 1 \over r^2\)

Electric potential due to a point charge varies with \( 1 \over r^2\)

Electric potential due to a dipole varies with \( 1 \over r^2\)

Electric field due to a dipole varies with \( 1 \over r^3\)

Correct

Incorrect
Question 9 of 10

9. Question

Potential due to a dipole at a point on its axis but in the direction opposite to dipole moment is

zero

\(p \over {4 \pi \epsilon_0r^2}\)

\(p \over {4 \pi \epsilon_0r}\)

\(-p \over {4 \pi \epsilon_0r^2}\)

Correct

Incorrect
Question 10 of 10

10. Question

A charge,Q, is brought to a point P from the infinity. There is no electric field present at the point P. What is the potential at the point P?

zero

\(Q \over {4 \pi \epsilon_0r^2}\)

\(-Q \over {4 \pi \epsilon_0r^2}\)

\(-Q \over {4 \pi \epsilon_0r}\)

Correct

Incorrect

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Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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