11Work done by wat?
A point charge q moves from point P to point S along the path PQRS in a uniform field E
pointing parallel to the positive direction of the X-axis.The coordinates of the point
P,Q,R and S are (a,b,0),(2a,0,0),(a,-b,0) and (0,0,0) respectively.The work done by the field in the
above process is given by the exp _________ ?
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UP 0 DOWN 0 0 6
6 Answers
1the field E is parallel to x axis
the point S is (0,0,0,)
the electrstatic field is a conservative field
so
(WPQ+WQR+WRS)+WSP=0
or WPS+WSP=0
work done =qE .SP
WSP=qE i.(rp-rs)
=qE i (ai +bj)
=qEa
WPS=-WSP=-qEA
11See force by Electric field is in the positive x-axis direction. Therefore it will affect only x component. Find the displacement of particle of its x component