A power supply has an output of 12 volts. A group of three resistors in series is connected to its terminals. Two of the resistors have resistances of 3Ω and 1Ω while the third is unknown. A voltmeter connected across the unknown resistance reads 6 volts. Determine: a. The unknown resistance. b. The total current through the resistors. c. The voltage across the 3Ω resistor. d. The voltage across the 1Ω resistor
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.
A power supply has an output of 12 volts. A group of three resistors in series is connected to its terminals. Two of the resistors have resistances of 3Ω and 1Ω while the third is unknown. A voltmeter connected across the unknown resistance reads 6 volts. Determine:
a. The unknown resistance.
b. The total current through the resistors.
c. The voltage across the 3Ω resistor.
d. The voltage across the 1Ω resistor
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