Understanding Ohm's Law and the Power Triangle

What is the formula for Ohm's Law?

If the voltage across a resistor is 10V and the current flowing through it is 2A, what is the resistance?

Which of the following is NOT a component of the Power Triangle?

• Voltage

• Current

• Power

• Resistance

How do you calculate power using voltage and current?

What is the relationship between voltage, current, and resistance in a circuit?

• Voltage is directly proportional to resistance and inversely proportional to current.

• Voltage is directly proportional to both current and resistance.

• Voltage is inversely proportional to resistance and directly proportional to current.

• Voltage is inversely proportional to both current and resistance.

If you know the power and voltage in a circuit, how can you calculate the current?

What is the correct formula to calculate resistance when you know the power and current?

In the Power Triangle, what does the hypotenuse represent?

• Reactive Power

• Apparent Power

• Real Power

• Resistance

How can the Power Triangle be used to solve problems in electrical circuits?

• By using it to calculate the efficiency of the circuit

• By using it to find missing values when two of the power forms are known

• By using it to directly measure current and voltage

• By using it to replace Ohm's Law

• 7V

• 12V

• 1.33V

• 0.75V