Question

how much work is done in moving charge of 2 coulombs from a point at 118 volts to a point at 128 volts

Answer 1

The work done is simply charge multiplied by the change in potential.

So it is    2*(128-118) = 20. (sry but i am not sure about the units).

Answer 2

Your question

how much work is done in moving charge of 2 coulombs from a point at 118 volts to a point at 128 volts ?

Too Easy

Your answer

Here ,

Given in the question →

• Charge = 2 C , which has to move in electric field from a point 'A'(118) to point 'B' (128) (say)

• So , Potential difference = 128 - 118 = 10 V

• To Calculate Work done (W) = ?

We use the Formula ,

Work done = Total charge x potential difference

• W = Q ( total ) x V

Here ,

• Q = Total charge = Given = 2 C

And ,

• V = Potential difference = 10 V

So the word done in moving the charge from A to B will be ,

• W = 2 x 10

• W = 20 joules

Work done = 20 joules.