Question

WHEN A 12V BATTERY IS CONNECTED ACROSS AN UNKNOWN RESISTOR ,A CURRENT OF 2.5 mA FLOWS THROUGH THE CIRCUIT. CALCULATE THE VALUE OF RESISTANCE OF THE RESISTOR.

Answer 1

PD= 12V
I = 2.5 mA =  0.0025 A
By Ohm's Law V=IR
                        R=V/I

12 V ÷ 0.0025 A = 4800 ohm

Answer 2

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According to Ohm’s law,

V = IR

=v/I

Here, V = 12 V and I = 2.5 mA = 0.0025 A Therefore,

=12/ 0.0025 = 4800 Ω = 4.8 kΩ

I hope, this will help you___❤❤

Thank you

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