Question

two resistors 3 ohm and unknown resistor are connected in a series across a 12 volt battery ) find the current through the unknown resistors "R" c) equivalent resistance of the circuit​

Answer 1

Answer:

current will remain same through the 3 ohm and R ohm resistors.

so the current I=V/R

I = 12/(3+R)

Equivalent resistance=3+R