Electrical Circuits Review

Front

The actual flow of electrons is called _______.

Back

Current

Front

Assuming the lamps are identical, what is the current running through each lamp?

Back

1 A

Front

In an electrical circuit, electrons move from the __________.

Back

Negative pole to positive pole

Front

What size resistor would produce a 3 Amp current flow with a 12 Volt battery?

Back

4 Ohms

Front

What is the current reading at the two question marks in the diagram?

Back

4 A

Front

What is the unit of electric current?

Back

Ampere (A)

Front

What is Ohm's Law?

Back

V = I × R (Voltage = Current × Resistance)

Front

What is the role of a resistor in a circuit?

Back

To limit the flow of electric current.

Front

What is the difference between series and parallel circuits?

Back

In series, components are connected end-to-end; in parallel, components are connected across the same voltage.

Front

What happens to the total resistance in a series circuit when more resistors are added?

Back

The total resistance increases.