Question

If 90J of energy are available for every 30C of charge what is the potential difference?

Answer 1

Answer:

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Answer 2

Given: The energy available for every $30C$ of charge is $=90J$

To find: The potential difference

Solution:

The charge given is $=30C$

The energy available for $30C$ charge is $=90J$

Now we can assume that the energy that is available is = The work done by the $30C$ charge.

The potential difference can be found using the relation,

$V=\frac{W}{Q}$  

where, $V$→ The potential difference

$W$ → The work done

$Q$ → Charge (in coulomb)

On calculating,

$V=\frac{90}{30}$

$V=3V$

The unit for the potential difference will be $V$(volt)

Final answer:

The potential difference for a $30C$ charge with an energy of $90J$ will be $3V$