Question

An 8-ohm resistor is connected to a 120 -volt circuit. What current will it draw? __________________________

   An 8-ohm resistor is connected to a 120 -volt circuit. What current will it draw?
__________________________

Electricity 1: Devices, Circuits and Materials

Electricity 1: Devices, Circuits and Materials

Thomas Kubala 9th Edition

Chapter 2, Problem 12

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We have a resistor with a resistance of 8 ohms and a voltage of 120 volts. Show more…

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An 8-ohm resistor is connected to a 120 -volt circuit. What current will it draw? __________________________

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Key Concepts

Ohm's Law

Ohm's Law is a fundamental principle in electrical circuits that states the current passing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. It is commonly expressed as V = IR, where V is voltage, I is current, and R is resistance.

Voltage

Voltage, or electric potential difference, is the measure of potential energy per unit charge available to drive the flow of electric current in a circuit. It acts as the pressure pushing electrons through the resistance of a circuit.

Resistance

Resistance is a measure of the opposition to the flow of electric current through a material. It is influenced by the material's properties, its cross-sectional area, and its length, and is measured in ohms. Higher resistance means less current will flow for a given voltage.

Electric Current

Electric current is the rate at which electric charge flows through a conductor. It is measured in amperes (A) and is determined by the applied voltage and the resistance in the circuit according to Ohm's Law.

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