Understanding Ohm's Law and Current

What does Ohm's Law describe?

• The relationship between voltage, current, and resistance

• How fast electricity travels

• The different types of batteries

• How to build a circuit

Who was the German physicist who developed Ohm's Law?

• André-Marie Ampère

• Georg Simon Ohm

• Paul Evans

• Thomas Edison

To find voltage (V) using Ohm's Triangle, what formula should you use?

• Voltage = Current ÷ Resistance

• Voltage = Resistance ÷ Current

• Voltage = Current × Resistance

• Voltage = Current + Resistance

In Ohm's Law, what does the letter "I" represent?

• Intensity of current

• Insulation

• Inductance

• Impedance

If you make the voltage in a circuit twice as big, what happens to the electric current?

• The current becomes half as big.

• The current stays the same.

• The current becomes twice as big.

• The current stops flowing.

A lamp has a resistance of 3 Ohms (Ω) and is connected to a 6 Volt (V) battery. What is the electric current flowing through the lamp?

• 0.5 Amps (A)

• 2 Amps (A)

• 3 Amps (A)

• 18 Amps (A)

If you make the resistance in a circuit twice as big, what happens to the electric current?

• The current becomes half as big.

• The current stays the same.

• The current becomes twice as big.

• The current stops flowing.

What is electric current?

• The push that makes electrons move.

• The flow of electrons.

• The opposition to electron flow.

• The brightness of a light bulb.