Ohm's Law

Who developed Ohm's Law?

• Georg Ohm

• Andre Ampere

• Paul

• Einstein

What is the relationship between voltage and current?

• Directly proportional

• Inversely proportional

• No relationship

• Random relationship

What is the formula for calculating voltage?

• V = I * R

• V = I / R

• V = R / I

• V = E / R

What is the unit of current?

• Ampere

• Volt

• Ohm

• Coulomb

What happens to the current when resistance is doubled?

• Current halves

• Current doubles

• Current remains the same

• Current becomes zero

What is the relationship between current and resistance?

• Directly proportional

• Inversely proportional

• No relationship

• Random relationship

What is the formula for calculating resistance?

• R = V * I

• R = V / I

• R = I / V

• R = E / I

What is the resistance of a lamp with a current of 0.5 Amps and a voltage of 12 volts?

• 6 Ohms

• 24 Ohms

• 0.5 Ohms

• 2.4 Ohms

What will be the current when a 240 Ohm lamp is plugged into a 120 volt outlet in the US?

• 0.5 Amps

• 1 Amp

• 2 Amps

• 4 Amps

What is resistance measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)