Question

A 1.5m wire carries a 3 A current when a potential difference of 84 V is applied. What is the resistance of the wire?

Answer 1

Resistance can be calculated using equation:

`V=I* R`

`R=(I)/(V)`

Here, V denotes voltage

I denotes current

R denotes resistance

Here V is given as 84 V

I is given as 3 A

So by putting all the values in the equation, we will get:

`84=3* R`

`R=(3)/(84)`

R=0.035 ohm

So, resistance here will be 0.035 ohm .