how much work is done in moving a body carrying dad equivalent to that on 5×10^19 electrons from a point A 25 volt to a point at 40 volts
Answers
Answered by
22
Answer:
120J
Explanation:
potential difference=V= (40-25)volts+ 15volts
no. of electrons= 5 x 10^19
charge of one electron= 1.6 x 10^-19
total charge=Q = 5 x10^19 x 1.6 x 10^-19= 8 coulombs
to find= work done = W
V=W/Q
therefore, W= VQ
W = (8 x 15)J =120J Ans
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