Question

What is the resistance in a circuit that carries a 0.75 A current when powered by a 1.5 V battery?

Answer 1

The formula to use is: I = ( ΔV / R )
Once you solve for R, your new formula would be: R= ( ΔV / I ) 
Plug in your values to get: R = (1.5V / .75A )
Finally, R = 2Ω

Answer 2

Answer : The resistance in the circuit is, 2 ohm

Solution : Given,

Voltage = 1.5 V

Current in the circuit = 0.75 A

According to the Ohm's law, the current passing through the conductor is directly proportional to the voltage and is inversely proportional to the resistance.

Formula used :

$V=I\times R$

where,

V = voltage

I = electric current

R = resistance

Now put all the given values in the above formula, we get

$1.5V=(0.75A)\times R$

$R=2ohm$

Therefore, the resistance in the circuit is, 2 ohm