ETC EngineeringMCQs
Home

Electric Potential MCQs

Practice Electric Potential MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 2
Electromagnetic TheoryElectric Potential

The SI unit of electric potential is?

  • AVolt
  • BTesla
  • CHenry
  • DFarad per metre
Report an error
Correct Answer: A. Volt
Explanation: Electric potential is measured in volts.
Reference: Standard electromagnetic theory: electric potential
Question 3
Electromagnetic TheoryElectric Potential

Electric field and electric potential are related by?

  • AE = -grad V
  • BE = grad V without a minus sign
  • CE = V²
  • DE = div V
Report an error
Correct Answer: A. E = -grad V
Explanation: The electric field equals the negative gradient of potential.
Reference: Standard electromagnetic theory: electric potential
Question 4
Electromagnetic TheoryElectric Potential

An equipotential surface is a surface on which?

  • AElectric potential is constant
  • BElectric field is always zero everywhere
  • CCharge density is necessarily zero
  • DMagnetic flux is constant by definition
Report an error
Correct Answer: A. Electric potential is constant
Explanation: Every point on an equipotential surface has the same potential.
Reference: Standard electromagnetic theory: electric potential