DC

Protons

\+

Neutrons

No charge

Electrons

\-

Most atoms are?

Electrically balanced

Out sheet holds how many atoms?

8

Conductors have how many electrons in valance?

1-3

Examples of conductors?

Silver, gold, copper

Conductors are easily what?

Attracted away by outside force

Insulators have how many electrons in valance?

5-8

Insulators don't ?

Give up electrons easily

Examples of Insulators?

Wood, glass, ceramic

Charged atoms are called?

Ions

Conventional current

\- to +

Electrical current

\+ to -

Volts

Electrical pressure

Amps

Electrical current

OHM

unit of resistance.

Productions of electricity

Heat, light, pressure, magnetism, chemical

Ohm’s law

Voltage, current, resistance, and power

How many watts in one horse power?

746

Direct current

Electrons flow in one direction

What are the three components of DC?

Power Source, load to use of power, conductor to connect source to load.

Series

Only one path for the current to flow.

Series volts?

Added

Series Amps?

Constant

Series resistance?

Added

Parallel circuits

More than one path the current can flow between source terminals.

Parallel volts?

Constant

Parallel amps?

added

Parallel resistance?

1/1/r1+1/r2 or R1 x R2/ R1 + R2

Current Law

Current leaving any point is equal to the current at the arriving point.

Voltage Law

The algebraic sum of the voltages around any loop or closed circuit is equal to zero.