A circuit contains three resistors connected in series across 100 volts; the circuit current is 2 Amperes. Two resistors (R1 and R2) have known values of 5 and 10 , respectively. Determine: a. The resistance of the entire circuit. b. The resistance of the third resistor R3. c. The voltage drop across each 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.