Electricity review

Front

The unit of current is

Back

A

Front

The direction of electrical current is always

Back

from positive to negative

Front

The law that connects between current, voltage and resistance is

Back

Ohm's law

Front

It is used to measure the opposition to the flow of electrical current.

Back

Resistance

Front

If the resistance increased, what happens to the current?

Back

decrease

Front

What is the unit of voltage?

Back

V (Volts)

Front

What is the formula for Ohm's law?

Back

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

Front

What does a voltmeter measure?

Back

Voltage (potential difference) in a circuit.

Front

What does an ammeter measure?

Back

Current flowing through a circuit.

Front

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

Back

P = V × I (Power = Voltage × Current)