ElectrostaticsHard
Question
As per this diagram a point charge +q is placed at the origin O. Work done in taking another point charge -Q from the point A(0, a) to another point B (a, 0) along the straight path AB is :
Options
A.
√2a
√2aB.zero
C.
D.
Solution
Charge moves ⊥r to the field lines. So the work done will be zero.
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