Electric Current and Ohm's Law

Which of the following represents Ohm’s law?

• I = V / R

• V = I x R

• R = V x I

• V = I / R

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

• 3 Amps

• 192 Amps

• 2 Amps

• 4 Amps

How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor

• 12 volts

• 24 volts

• 1.3333

• 48 volts

How many Volts would it take to push 1 Amp through a resistance of 1 Ohm

• 10 volts

• 1 volt

• 48 volts

• 5 volts

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

What word means how hard it is for electrons to flow through.

• Current

• Voltage

• Resistance

• Power

What word means how fast the electrons flow.

• Current

• Voltage

• Resistance

• Power

Tags

NGSS.HS-PS2-5

How do you calculate current

• Resistance X Voltage

• Voltage X Resistance

• Resistance ÷ Voltage

• Voltage ÷ Resistance

If you decreases the resistance of a circuit, what happens?

• Current decreases

• Current increases

• Electrons disappear

• Bulbs get brighter