Question

Answer the attachment....​

Answer 1

Option b

Explaination below

Work W= V*Q [ volt into coulomb]

for 118 volt 

W = V*Q

    = 118 * 2

    =236 joule

for 128

W = V*Q

    = 128 * 2

    = 256 joule

work done for 118v to 128v is = 256 - 236

                                            = 20 joule

Answer 2

Given that ,

A charge of 2 c moves from a point at 118 volts to a point at 128 volts

We know that ,

The work done to move a unit charge from one point to another point is called potential difference

Mathematically ,

$\large \rm\fbox{ V_{b} - V_{a} = \frac{ W_{ab} }{q} }$

The SI unit of potential difference is volt

Thus ,

$\mapsto \sf128 - 118 = \frac{Work}{2} \\ \\\mapsto \sf 10 = \frac{Work}{2} \\ \\\mapsto \sf Work = 20 \: \: joule$

$\therefore\sf \underline{The \: work \: done \: i s \: 20 \: joule }$