## 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}