Question

A circuit shows a 12v power supply connected to some resistors. The current in the resistor x is 2A and the current in 6 ohms is 0.5A. Find resistance of resistor x?

Answer 1

Since currents in the resistors are different, resistors are connected in parallel. So:

$6\cdot0.5=R_x\cdot2$

$R_x=3/2=1.5\ ohms$