Question

Class 10th Physics two resistance of 5 ohm and 7 ohm are connected in series to a cell of 72 volt. Find the current in each resistance .what will be the voltage across 5 ohm resistance?

Answer 1

hey sakna here

RESISTANCE = R1+R2

                      = 5 + 7

                      =12 ohm

bt V = IR

I = V/R

 = 72/120 VOLT

V = IR

V = 72/120*5

V = 3

hope it help

Answer 2

$for \: resistane \: 5 \\ v = ir \\ 72 = i5 \\ i = 14.4 \\ for \: r = 7 \\ lly \\ i = 10.29$