Question

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

Answer 1

Explanation:

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 :-

• Charge (Q) = 2 coulombs

• Potential difference (V) = 128 - 118 = 10 volts

To find :-

• Work done (W) = ?

Solution :-

we know that,

$\orange{\bigstar}\:\:{\underline{\boxed{\bf\pink{V=\dfrac{W}{Q}}}}}$

• Work done (W)
• Charge (Q)
• Potential difference (V)

Putting all the values in the above formula,

$\rm\longrightarrow\:10=\dfrac{W}{2}$

$\rm\longrightarrow\:10\times{2}=W$

$\rm\longrightarrow\:20=W$

$\rm\longrightarrow\:W=20\:joules$

Hence,the work done will be 20 joules.

More information :-

work :- work is said to be done on a body if a force is applied on it and it displace in the direction of appiled force.

• SI unit of work is Joule (J)

• CGS unit of work is erg.

• It is a scaler quantity.