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Grade: 12

                        

Two points P and Q are maintained at a potential of 10V and -4V respectively.The work done in moving 100 electrons from P to Q is?

4 years ago

Answers : (2)

Vikas TU
12278 Points
							
Work done = q*(change in potential at those 2 points).
                  = 1.602 x 10^-19 * ( 10 – -4)
                  = 1.602 x 10^-19 x 14 Joule. 
this is for one electron, As work is the scalar quantity,
Total work done = 1.602 x 10^-19 x 14 x 100 Joule. 
                          = 224.28 x 10^-18 Joule.
 
4 years ago
Rishi Sharma
askIITians Faculty
614 Points
							Dear Student,
Please find below the solution to your problem.

Work done = q*(change in potential at those 2 points).
= 1.602 x 10^-19 * ( 10 – -4)
= 1.602 x 10^-19 x 14 Joule.
this is for one electron, As work is the scalar quantity,
Total work done = 1.602 x 10^-19 x 14 x 100 Joule.
= 224.28 x 10^-18 Joule

Thanks and Regards
3 months ago
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