Question

When the 40 U battery is connected across an unknown resistor , there is current of 100mA in the circuit .
Find the value of the resistance of the
resistor
c) 5000 OHM
b) 800 OHM
c) 0.8 OHM
d) None of these​

Answer 1

Answer:

D option

Explanation:

Because answer is not listed in the options which is 400 ohm

Answer 2

V = 40v

I = 100mA = 0.1A

By Ohm's law,

R = V/I = 40/0.1 = 400 ohm

answer:d

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