Tuesday, 20 September 2022

Electric potential : MCQ ON ELECTRIC POTENTIAL

Electric potential is defined as the amount of work needed

to move a unit charge from a reference point to a specific

point against the electric field.


Q1 Electric potential is

  • Scalar quantity 
  • vector quantity 
  • Both 
  • None

  • Scalar quantity 

 

Q2 One volt is equivalent to 

  • Newton/second 
  • Newton/coulomb 
  • joule/coulomb
  • joule/coulomb

  • joule/coulomb


Q3 Electric potential due to electric dipole at a point on its equatorial line is always

  • Zero 
  • one 
  • infinity 
  • none

  • Zero 


Q4 Electric potential inside conductor is 

  • Same 
  • zero 
  • None
  • may or may not zero 

  • Same 


Q5 Electric potential due to electric dipole at a point on equatorial line is zero(T/F) 

  • True
  • False

  • True


Q6 The electric potential on Equipotential surface is same


  • True
  • False 

  • True

Q7 What is the nature of equipotential surfaces in case of a positive

charge? 

  • Circular 
  • Spherical 
  • Cubical 
  • Cylindrical

  • Circular 


Q8 The nature of equipotential surfaces due to point charge, situated at infinity  is  

  • Circular 
  • Spherical 
  • Cubical 
  • Plane 

  • Plane 

 

Q9 Electric field is steepest in the direction in which the potential...

  • Remain constant
  • Increases
  • Either decreases or remain constant
  • decreases

  • decreases 
Electric field is defined as the negative of the gradient, i.e.
E=-δV/δr it points in the direction of steepest descent of the potential.


Q10 Work done in moving a charge over an equipotential surface is zero.(T/F)

  • True
  • False

  • True


Q11 What is the direction of electric field with respect to equipotential surface?

  • `0^{0}`
  • `90^{0}`
  • `60^{0}`
  • `45^{0}`

  • `90^{0}`


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