Free Electric Potential MCQs with Answers
26 Electric Potential MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Electric potential is the work done per unit positive charge in bringing it from infinity to a point, while potential difference compares energy change between two points. Work includes potential due to point charges, superposition of scalar potentials, equipotential surfaces, and the relation between electric field and potential.
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26 questions · page 2 of 2
- A. 9.6 x 10^-19 J
- B. 9.1 x 10^-19 J
- C. 1.6 x 10^-19 J
- D. 6.0 x 10^-19 J
Explanation: Explanation: Charge = q = 2e Potential difference = V = 3V Energy = E = ?As we know that, E = qV = (2e)(3V) = 6eV E = 6 (1.6 × 10-19) E =…
Correct answer: 9.6 x 10^-19 J- A. 1.6 x 10^-19 J
- B. 125 J
- C. 125 x 10^-19 J
- D. 125 x 1.6 x 10^-19 J
Explanation: Electric Potential Energy = Electric Potential x ChargeCharge = 5 x 1.6 x 10-19 CElectric Potential Energy = 25V x (5 x 1.6 x 10-19) CThis…
Correct answer: 125 x 1.6 x 10^-19 J- A. 9.6 × 10^-19J
- B. 1.6 ×10^-19 J
- C. 3.2 ×10^-19 J
- D. 6.9 × 10^-19 J
Explanation: K.E = (1.6 ×10^-19) × (C×V) As K.E = (1.6×10^-19) (2×3) = 9.6 × 10^-19 JA.9.6 × 10^-19 J: This is the correct answer, obtained by using…
Correct answer: 9.6 × 10^-19J- A. 1.6 × 10^-18J
- B. 1.6 × 10^-17J
- C. 100J
- D. 100 electron volt
Explanation: Kinetic Energy = Work done = Q x V = 1.6×10−19×100=1.6×10−17 Joules. This option is correct as seen from the following relation.
Correct answer: 1.6 × 10^-17J- A. Each coulomb of charge from the battery supplies 9.0J of electrical energy to the whole circuit
- B. The battery supplies 9.0J to an external circuit for each coulomb of charge
- C. The potential difference across any component connected to the battery will be 9.0V
- D. There will always be 9.0V across the battery terminals
Explanation: The correct answer is Option A. A battery marked as 9.0V means it provides 9.0 joules of energy per coulomb of charge.
Correct answer: Each coulomb of charge from the battery supplies 9.0J of electrical energy to the whole circuit- A. 40 eV
- B. 40 KeV
- C. 40 MeV
- D. Zero
Explanation: A K.E is equal to EPE i.e qAV so 2e x 20V= 40 eVAs it is numerical, it can have only one possible answer.
Correct answer: 40 eV