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

ANSWER

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Resistance is 4800 ohms.

EXPLANATION

V= 12v

R=?

I= 2.5mA -------> 0.0025 A

V = IR

R = V/I

R = 12/ 0.0025

R = 4800 ohms

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Answer 2

Here's your answer.

It's in the image below.