Question

+) LE
42. An electric dipole is along a uniform electric
field. If it is deflected by 60°, work done by agent is
2 x 10-19 J. Then the work done by an agent if it is
deflected by 30º further is
1) 2.5 x 10-19J
2) 2 x 10-19)
3) 4 x 10-19J
4) 2 x 10-16]​

Answer 1

Answer:

Working on electric dipole when deflected by an angle of 60

0

is given by,

W

1

=U=−PEcos60

0

=−2×10

−19

J.

Now, work done in deflecting he dipole by another 30

0

is given by,

W

1

=−PEcos90

0

=0

Therefore work done by the agency which deflected dipole by 30

0

mpore is,

W=W

2

−W

1

=0−(−2×10

−19

)=2×10

−19

J.

Hence,

option (B) is correct answer.

Explanation:

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Answer 2

Explanation:

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