Basic Electricity

Front

The unit to measure power

Back

watt

Front

The measure of electrical resistance

Back

ohm

Front

The unit for electric current

Back

ampere

Front

What does the switch do in a circuit?

Back

It opens and closes the circuit.

Front

Electric current is the flow of ______________________

Back

electrons

Front

What form of energy is stored in a battery?

Back

chemical energy

Front

When electrical resistance increases, amperage:

Back

Decreases

Front

Using Ohm's law, what is the equation to find resistance?

Back

Voltage / Current

Front

Using Ohm's law, what is the equation to find voltage?

Back

Current x Resistance

Front

Ohm’s law: If I have a 10 V DC battery and I need .02 A to power an LED what size resistor do I need?

Back

500 Ohm