How much work is done in bringing a charge of 2 . 5 × 10 - 6 C from one point to another, if the potential difference between the two points is 4 V ?

Given that Q = 2 . 5 × 10 - 6 c P . d . = V B - V A = 4 V ∴ V B - V A = W Q ⇒ W = Q V B - V A = 2 . 5 × 10 - 6 × 4 = 1 . 0 × 10 - 5 J ∴ W = 1 . 0 × 10 - 5 J

E M B I B E

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 3

HARD

12th ICSE

IMPORTANT

Earn 100

Suggest a method to transfer whole charge of a hollow sphere to another hollow sphere comparatively large. Define potential difference. Write its unit and write its value for two points distant apart on an equipotential surface.

Important Questions on Electric Potential

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 4

Define electric potential and obtain an expression between intensity of electric field due to a point charge and electric potential. Also show that electric field is gradient of electric potential.

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 5

What do you understand by the term electric potential energy of two point charges distant by a finite distance? Obtain expression for it. What would happen to electric potential energy if distance is reduced between two similar and opposite charges?

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 6

Obtain an expression for work done in rotating an electric dipole in uniform electric field. Write an expression for total electric potential energy of an electric dipole in uniform electric field and suggest its position for stable and most unstable equilibrium state.

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 1

The amount of work done in bringing a charge of