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The diagram shows three infinitely long ...

The diagram shows three infinitely long uniform line charges placed on the `X, Y` and ` Z` axis . The work done in moving a unit positive charge from (1,1,1) to (2 , 1,1,) is equal to
.

A

`(lamda. "in" 2)//2piepsilon_(0)`

B

`(lamda. "in" 2)//piepsilon_(0)`

C

`(3lamda. "in" 2)//2piepsilon_(0)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
B
`W= int_sqrt2^1 (2k lamda)/r dr- int_sqrt2^1 (2k (0 lamda)/r dr, Q=(lamda ln 2)/ (pi e_0)`
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