Electrical Engineering (Khan Academy) Flashcards

Introduction Flashcards

Resistor Symbol

Zigzag is more common

Capacitor symbol

Inductor symbol

Ohm's Law

V=IR

Equation relating capacitance and current

I=C(dV/dt)

Equation relating voltage and inductance

V=L(dI/dt)

What is the symbol for a battery? Where is the positive and negative terminal

Energy of a capacitor equation

U_c= 1/2CV²

Energy of magnetic field of inductor

U_L= 1/2LI²

Tolerance definition

Refers to how much the resistance value differs from its proposed value. (A percent)

On a resistor, what do the first couple colors of the bands show

The digits of the resistance value

On a resistor, what does the second to last color of the band show

The multiplier of the resistance value.

On a resistor, what does the last color of the band show

The tolerance (As a percent)

According to the color chart, what do each of the colors represent.

What is a node

An area of a circuit that is bounded by two or more circuit elements.