A 120-Ohm resistor is in series with unknown resistor. The voltage drop across the unknown resistor is 12V and power dissipated by the 120-Ohm resistor is 4.8W. Calculate the value of unknown resistor

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Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.