Question

26. Two resistors of 3 each and an unknown resistor are connected in a series across a 12 V battery. If the voltage drop across the unknown resistor is 6 V, find: (a) potential across each 3 resistance. (b) the current through unknown resistor 'R'.

Answer 1

Explanation:

V1,V2,V3 potential drop across each resistance

V1+V2+V3=12

resistance are in series current are same

i(3+3)=12-V3=12-6=6

i*6=6

I=1amp

V1=3v V2=3v V3=6v

b) current=1 amp