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Physics (Boundless)
19: Electric Current and Resistance

19: Electric Current and Resistance

Last updated

Nov 5, 2020
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- 18.5: Applications
- 19.1: Overview

Boundless
Boundless

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Topic hierarchy

19.1: Overview
Electric current is the flow of electric charge and resistance is the opposition to that flow.
19.2: Electric Current
A battery is a device that converts chemical energy directly to electrical energy.
19.3: Resistance and Resistors
Ohm’s Law states that current is proportional to voltage; circuits are ohmic if they obey the relation V=IR.
19.4: Electric Power and Energy
The energy used is the time integral of the electric power.
19.5: Alternating Currents
Phasors are used to analyze electrical systems in sinusoidal steady state and with a uniform angular frequency.
19.6: Electricity in the World
The hazards from electricity can be categorized into thermal and shock hazards.

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