Question

If 5 J of work is needed to shift
10C of charge from one place
to another. The potential
difference between the places
should be ?
1- 50V
2-0.5V
3-2V​

Answer 1

Given

Work Done = 5 J

Charge = 10 C

To Find

Potential Difference

Solution

We know that

$\rm \longrightarrow V=\dfrac{W}{Q}$

Here

• V = Potential Difference
• W = Work Done
• Q = Charge

Units

• V = Voltage (V)
• W = Joule (J)
• Q = Coulomb (C)

According to the question

We are asked to find potential difference

Therefore

We must find "V"

Given that

Work Done = 5 J

Charge = 10 C

Hence

• W = 5 J
• Q = 10 C

Substituting the values

We get

$\rm \longrightarrow V=\dfrac{5}{10} \ V$

Therefore

$\rm \longrightarrow V=0.5 \ V$

Hence

Potential Difference = 0.5 V

So

Option (2) is correct

Answer 2

Given :-

Work done (W) = 5 J

Charge (Q) = 10 C

To find :-

Potential difference (V)

Solution :-

$\begin{gathered}\dag\;{\underline{\frak{As\;we\;know\;that,}}}\end{gathered}$

$\sf{V = W / Q}$

$\begin{gathered}\dag\;{\underline{\frak{Putting\:values\:in\:formula,}}}\end{gathered}$

$\sf\red{↠}$V = 5 / 10

$\sf\red{↠}$V = 1 / 2 or 0.5

$\sf{Therefore , \ 2 - 0.5 V \ is \ the \ correct \ answer }$

${\huge{\underline{\small{\mathbb{\red{HOPE\:IT\:HELPS\:UH :)}}}}}}$