Question

When a 4V battery is connected across an unknown resistor there is a current of 100 mA
in the circuit. The value of the resistance of the resister is??
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Answer 1

Answer:

V=4v

I=100mA

R=?

V=IR

so, R=V/I

• =4/100=0.04 ohm

Answer 2

Answer:

v=iR

R=v/i

v=4 volts

i=100^-3 A

therefore. R=40ohm