Question

when a 12 volt battery is connected across an unknown resistor there is a current of 2.5 m a in the circuit find the value of the resistance of the register

Answer 1

hey Sakna here

potential difference:12v

current:2.5 ampere

we know that V:IR

R:V/I
R:12/2.5
4.8:R

therefore resistance is 4.8 ohm

hope it help

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Answer 2

V=IR
V=12v
I=2.5A
so,
12=(2.5)R
R=12/2.5
R=4.8ohm