Electricity review

Front

What is the difference in electric potential between two points?

Back

Voltage

Front

What is the unit of current?

Back

A (Amperes)

Front

Calculate the current in a circuit with two 5.5 Volt batteries and a bulb with a resistance of 6 ohms.

Back

1.83 A

Front

What is the unit of resistance?

Back

Ω (Ohms)

Front

What is another name for 'potential difference'?

Back

Voltage

Front

What is the formula for Ohm's Law?

Back

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

Front

What does 'current' refer to in an electrical circuit?

Back

The flow of electric charge.

Front

What is the unit of power in an electrical circuit?

Back

W (Watts)

Front

How do you calculate power in an electrical circuit?

Back

P = V × I (Power = Voltage × Current)

Front

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

Back

Ohm's Law states that V = I × R.