Electricity - Ohm's Law

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)

What is Resistance?

• The flow of electrons
• Electric potential difference
• A battery
• The ability to reduce the flow of electrons

Electricity that flows in a closed path is called a

• path

• current

• circuit

• light

Voltage divided by Resistance equals....?

(V / R = ?)

• Current

• Power

• Ohms

• Watts

Voltage divided by Current equals...?

(V / I = ?)

• Current

• Power

• Resistance

• Watts

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

• Increase
• Decrease
• Stay the same
• X

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

• Increase
• Decrease
• Stay the same
• X

What size resistor would produce a 3 Amp current flow with a 12 Volt battery (remember: V = I x R, or I = V/R, or R = V/I)

• 1 Ohm

• 3 Ohms

• 4 Ohms

• 12 Ohms

What size resistor would produce a 3 Amp current flow with a 12 Volt battery (remember: V = I x R, or I = V/R, or R = V/I)

• 1 Ohm

• 3 Ohms

• 4 Ohms

• 12 Ohms