Chapter Exam

Chapter 5: Electrostatic Potential and Capacitance — Online MCQ Test

Q: What is the SI unit of electric potential?

Answer: B. Volt — Electric potential is defined as work done per unit charge, and its SI unit is volt.

Q: The electric potential at a point is defined as the work done in bringing a unit positive test charge from:

Answer: B. infinity to the point — Electric potential at a point is the work done in bringing a unit positive charge from infinity to that point.

Q: A charge q is moved through a potential difference of V. The work done is:

Answer: B. qV — Work done in moving a charge through a potential difference is given by W = qV.

Q: If the electric potential is constant throughout a region, then the electric field in that region is:

Answer: B. zero — Electric field equals the negative rate of change of potential. If potential is constant, its gradient is zero and hence the electric field is zero.

Q: A parallel plate capacitor is connected to a battery. If the plate separation is increased, which of the following is correct?

Answer: A. Charge decreases and energy decreases — With battery connected, potential remains constant. Since C decreases when separation increases, the charge decreases and stored energy also decreases.

PHYSICS · CLASS 12 INTERMEDIATE 2 YEAR · Telangana State Board

Practice Chapter 5: Electrostatic Potential and Capacitance with a free chapter-wise online MCQ test for Telangana State Board CLASS 12 INTERMEDIATE 2 YEAR PHYSICS. This chapter covers: Focusing on electrostatics this chapter details electric potential potential energy equipotential surfaces conductors dielectrics parallel plate capacitors energy storage and serie.... AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Chapter 5: Electrostatic Potential and Capacitance — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 12 INTERMEDIATE 2 YEAR PHYSICS — Chapter 5: Electrostatic Potential and Capacitance, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the SI unit of electric potential?

A. Joule
B. Volt ✓
C. Newton
D. Coulomb

Answer: B. Volt
Electric potential is defined as work done per unit charge, and its SI unit is volt.

The electric potential at a point is defined as the work done in bringing a unit positive test charge from:

A. the point to infinity
B. infinity to the point ✓
C. one point to another point in the same field only
D. the origin to the point

Answer: B. infinity to the point
Electric potential at a point is the work done in bringing a unit positive charge from infinity to that point.

A charge q is moved through a potential difference of V. The work done is:

A. q/V
B. qV ✓
C. V/q
D. q²V

Answer: B. qV
Work done in moving a charge through a potential difference is given by W = qV.

If the electric potential is constant throughout a region, then the electric field in that region is:

A. uniform and non-zero
B. zero ✓
C. maximum
D. depends on the choice of origin

Answer: B. zero
Electric field equals the negative rate of change of potential. If potential is constant, its gradient is zero and hence the electric field is zero.

A parallel plate capacitor is connected to a battery. If the plate separation is increased, which of the following is correct?

A. Charge decreases and energy decreases ✓
B. Charge increases and energy increases
C. Charge remains constant and energy remains constant
D. Charge increases and potential decreases

Answer: A. Charge decreases and energy decreases
With battery connected, potential remains constant. Since C decreases when separation increases, the charge decreases and stored energy also decreases.