Electrostatics (KVPY Stream-SA (Class 11) Physics): Questions 14 - 15 of 15

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Question number: 14

» 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

Question number: 15

» Electrostatics » Coulomb's Law

Appeared in Year: 2016

MCQ▾

Question

The radius of a nucleus is given by r0A13 where r0=1.3×1015m and A is the mass number of the nucleus. The Lead nucleus has A=206 . The electrostatic force between two protons in this nucleus is approximately –

Choices

Choice (4) Response

a.

1017N

b.

102N

c.

107N

d.

1012N

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