Questions
There is an electric field E in X-direction. If the work done on moving a charge 0.2C through a distance of 2 m along a line making an angle 60 ° with the X-axis is 4.0 J, what is the value of E?
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Correct option is D
W = qV = qE.d⇒ 4= 0 .2 X E X (2 cos 60°)= 0.2 EX (2 X 0.5)E=40.2=20NC-1Similar Questions
Two parallel plates separated by a distance of 5 mm are kept at a potential difference of 50 V. A particle of mass 10-15 kg and charge 10-11 C enters in it with a velocity 107 m/s. The acceleration of the particle will be
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