electric currents

What is the symbol for a wire?

What is the symbol for a cell?

What is the symbol for an ammeter?

What is the symbol for a switch?

What are the two types of electrostatic charge?

Positive and Negative

What is a series circuit?

Everything is connected in one loop.

How is current measured in a circuit?

Using an ammeter placed in series.

What is resistance measured in?

Ohms (Ω)

How can you increase the strength of an electromagnet?

1.

Increase the current through the wire.

2.

Increase the number of coils around the wire.

3.

Use an iron core.

What is current measured in?

Amps (A)

What does a voltmeter measure?

The voltage supplied by a cell or battery.

What is voltage a measure of?

The energy supplied to move charge around.

What happens to the current in a series circuit?

The current is the same throughout the circuit.

How do electrons move in a circuit?

They drift from negative to positive terminal.

What can cause static charge?

Friction between insulators.

What is another term for potential difference?

Voltage

What device measures current in a wire?

An ammeter