# DC Circuits

AP®︎ Physics 1,

Circuits make computers, digital cameras, and video games possible. Circuits are driving an unprecedented rate of change in how we live. In this unit, you'll learn about the physics behind the electronic devices we use.

This course contains 7 segments:

Electric current, resistivity, and Ohm's law

In this lesson, you'll learn how Ohm's law relates the voltage across a resistor, the current through a resistor, and the resistance of the resistor. We'll also start talking about circuits and the resistivity of materials.

Electric power and DC circuits

In this lesson, we'll learn about power used by a resistor and how to interpret circuit diagrams.

Kirchhoff's junction rule

Learn how to analyze the current flow in a DC circuit using Kirchhoff junction rule (or current law).

Kirchhoff's loop rule

Learn how to analyze the voltage in a DC circuit using Kirchhoff loop rule (or voltage law).

Series and parallel resistors

Learn how to simplify a circuit diagram with resistors in series or in parallel.

DC Ammeters and voltmeters

Learn how to use voltmeters and ammeters to measure the potential difference and current in a DC circuit.

DC Circuit analysis

Learn how to analyze a more complicated DC circuit using the strategies we've learned so far, including Kirchhoff's laws and Ohm's law.

Rating Not enough ratings 7 segments On Demand (Start anytime) Free Khan Academy On all desktop and mobile devices English Science Science

## Careers

An overview of related careers and their average salaries in the US. Bars indicate income percentile.

National DC \$67k

DC Inventory Analyst \$68k

DC Manager 2 \$72k

Circuit Librarian \$72k

Circuit Trainer 3 \$74k

DC 3 \$77k

Senior DC IT Analyst \$87k

ENS, DC \$101k

Circuit Designer 1 \$114k

US Circuit Judge \$137k

Circuit Designer 2 3 \$138k

## Write a review

Your opinion matters. Tell us what you think.