Unit 5 Review - Electricity/Magnetism

Front

What is a static charge?

Back

An unbalanced charge on an object.

Front

Electric charges that are alike _______ each other.

Back

Repel.

Front

What voltage is needed to produce 2A of current through a 10Ω resistor? (V=IR)

Back

20V.

Front

What charge does an electron have?

Back

Negative (-).

Front

How many paths through which charge can flow would be shown in a circuit diagram of a series circuit?

Back

One.

Front

What is the unit of electric current?

Back

Ampere (A).

Front

What is Ohm's Law?

Back

V = IR, where V is voltage, I is current, and R is resistance.

Front

What is the effect of increasing resistance in a circuit with constant voltage?

Back

Decreases the current.

Front

What happens to the magnetic field when electric current flows through a wire?

Back

It creates a magnetic field around the wire.

Front

What is the relationship between voltage, current, and resistance?

Back

Voltage is directly proportional to current and resistance.