Ohm's Law

What is voltage measured in?

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

What is current measured in?

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

What is resistance measured in?

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

How do you calculate current

• Resistance X Voltage
• Voltage X Resistance
• Resistance ÷ Voltage
• Voltage ÷ Resistance

What voltage is needed to cause a 2A current flow through a 10Ω resistor?

• 5V
• 0.2V
• 20V
• 200V

What resistance is needed to cause a 50A current flow because of a 500V battery?

• 10Ώ
• 5Ώ
• 2500Ώ
• 550Ώ

If the battery produced 12.6 Volts, what would be the current flow be for a 6 Ohm resistor?

• 2.1 Amps

• 2.4 Amps

• 1.71 Amps

• 15 Amps

If the Voltage is increased and the resistance stays the same, Current will

• Increase

• Decrease

• Stay the same

• none of these

If the Voltage stays the same and Resistance is increased, Current will

• Increase

• Decrease

• Stay the same

• none of these

The mathematical relationship among Voltage, Current, and Resistance

• Faraday's Law
• Tesla's Law
• Edison's Law
• Ohm's Law