Question

When a 12 V battery is connected across an unknown resistor, there is a current
of 2.5 mA in the circuit. Find the value of the resistance of the resistor​

Answer 1

Explanation:

Given: V=12 V

I=2.5 mA

Let the resistance be R

By Ohm's Law,

V=IR

12=2.5×10-³ R

R=4.8×10³ Ω

Answer 2

Answer:

V=12v

I=2.5mA=2.5×10^-3 ×10 = 25× 10^-4

R= ?

R=V/I

R=12/25×10^-4

R=12×10^4/25

R=12 × 10000/25

R =4800

Therefore, R = 4800 ohms

Explanation: