Electricity and Circuits Review

Front

Why is electrical wiring usually covered with a layer of plastic?

Back

To make it safe.

Front

What is the mathematical relationship among Voltage, Current, and Resistance?

Back

Ohm's Law.

Front

How does resistance affect current?

Back

More resistance - less current.

Front

In a series circuit, what happens if one of the light bulbs is blown?

Back

All the bulbs go out.

Front

What is current measured in?

Back

A (Amps).

Front

What is Voltage?

Back

The electric potential difference between two points.

Front

What is Resistance?

Back

The opposition to the flow of electric current.

Front

What is a series circuit?

Back

A circuit where components are connected end-to-end, so current flows through each component.

Front

What is a parallel circuit?

Back

A circuit where components are connected across common points, allowing multiple paths for current.

Front

What happens to total resistance in a series circuit?

Back

It increases as more resistors are added.