Electrostatics-Electrostatic Potential Energy (KVPY Stream-SA (Class 11) Physics): Questions 1 - 3 of 3

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Question number: 1

» Electrostatics » Electrostatic Potential Energy

Appeared in Year: 2014

MCQ▾

Question

Two equal charges of magnitude Q each are placed at a distance d apart. Their electrostatic energy is E. A third charge Q2 is brought midway between these two charges. The electrostatic energy of the system is now

Choices

Choice (4) Response

a.

E

b.

-2E

c.

-E

d.

0

Question number: 2

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

27 identical water drops, carrying equal charge q and having the same potential V, merge together. The energy of the new drop is given as,

Choices

Choice (4) Response

a.

81U

b.

3U

c.

243U

d.

27U

Question number: 3

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

N identical water drops, carrying equal charge q and having the same potential V, merge together. The energy of the new drop is given as,

Choices

Choice (4) Response

a.

N23U

b.

N43U

c.

N13U

d.

N53U

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