Voltage: Ohm's Law Calculations Mastery Quiz…

Q: What is the formula for calculating voltage (V) using Ohm's Law?

V = I * R — Voltage is directly proportional to current and resistance.

Q: If a circuit has a current of 2 Amps and a resistance of 10 Ohms, what is the voltage?

20 Volts — V = I * R; V = 2A * 10? = 20V

Q: What unit is used to measure voltage?

Volt (V) — Voltage is measured in Volts.

Q: If a 12V battery is connected to a 4 Ohm resistor, what is the current flowing through the resistor?

3 Amps — I = V / R; I = 12V / 4? = 3A

Q: A device has a current of 0.5 Amps and a voltage of 6 Volts. What is its resistance?

12 Ohms — R = V / I; R = 6V / 0.5A = 12?

Q: What does 'I' represent in Ohm's Law?

Current — I represents electric current.

Q: What happens to the current if the voltage increases while the resistance remains constant?

Current increases — According to Ohm's law, current is directly proportional to voltage.

Q: If resistance is increased while voltage stays the same, what happens to the current?

It decreases — Current is inversely proportional to resistance.

Q: What is the resistance of a light bulb that draws 0.2A from a 120V source?

600 Ohms — R = V/I; R = 120V / 0.2A = 600 Ohms

Q: Which of the following units is NOT used in Ohm's Law calculations?

Watts — Watts is a unit of power, not directly used in Ohm's Law calculations.

Question 1 of 10

What is the formula for calculating voltage (V) using Ohm's Law?

Voltage is directly proportional to current and resistance.

Question 2 of 10

If a circuit has a current of 2 Amps and a resistance of 10 Ohms, what is the voltage?

V = I * R; V = 2A * 10? = 20V

Question 3 of 10

What unit is used to measure voltage?

Voltage is measured in Volts.

Question 4 of 10

If a 12V battery is connected to a 4 Ohm resistor, what is the current flowing through the resistor?

I = V / R; I = 12V / 4? = 3A

Question 5 of 10

A device has a current of 0.5 Amps and a voltage of 6 Volts. What is its resistance?

R = V / I; R = 6V / 0.5A = 12?

Question 6 of 10

What does 'I' represent in Ohm's Law?

I represents electric current.

Question 7 of 10

What happens to the current if the voltage increases while the resistance remains constant?

According to Ohm's law, current is directly proportional to voltage.

Question 8 of 10

If resistance is increased while voltage stays the same, what happens to the current?

Current is inversely proportional to resistance.

Question 9 of 10

What is the resistance of a light bulb that draws 0.2A from a 120V source?

R = V/I; R = 120V / 0.2A = 600 Ohms

Question 10 of 10

Which of the following units is NOT used in Ohm's Law calculations?

Watts is a unit of power, not directly used in Ohm's Law calculations.

Voltage: Ohm's Law Calculations Mastery Quiz