Questions
The displacement of a charge Q in the electric filed is . The work done is
detailed solution
Correct option is A
By using W=QV = Q (E→.r→) ⇒W=Q(e1i∧+e2j∧+e3k∧).(ai∧+bj∧)=Q(e1a+e2b)∵i∧.i∧=j∧.j∧=k∧.k∧=1 &i∧.j∧=j∧.k∧=k∧.i∧=0Talk to our academic expert!
Similar Questions
A mass m = 20 g has a charge q = 3.0mC. It moves with a velocity of 20 m/s and enters a region of electric field of 80 N/C in the same direction as the velocity of the mass. The velocity of the mass after 3 seconds in this region is
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