Question

when a 12 volt battery is connected across an unknown resistor there is a current of 2.5 m a in the circuit find the value of the resistance of the register​

Answer 1

We have potential difference (V) = 12V

Electric current (I)=2.5 mA= 2.4×10-3

According to Ohm’s Law,

(V) = IR

Or R = V/I

4.8 × 10^3 is the Answer

Answer 2

Answer:

R=V/I

R=12/2.5

=4.8 ohm