Understanding Ohm's Law

What does Ohm's Law relate to in electrical circuits?

• Ohm's Law relates voltage, current, and resistance in electrical circuits.

• Ohm's Law describes the behavior of magnetic fields in circuits.

• Ohm's Law is used to calculate the capacitance in electrical circuits.

• Ohm's Law relates power and energy in electrical circuits.

What is the formula for Ohm's Law?

• R = V - I

• V = R / I

• I = V + R

• V = I * R

What is the unit of measurement for current?

• amperes

• volts

• watts

• ohms

What is the unit of measurement for resistance?

• amperes

• volts

• watts

• ohms

What is the unit of measurement for voltage?

• amperes

• volts

• watts

• ohms

What is the unit of measurement for power?

• amperes

• volts

• watts

• ohms

If the resistance is constant and the voltage increases, what happens to the current?

• The current increases.

• The current decreases.

• The current remains the same.

• The current fluctuates randomly.

If the voltage is constant and the resistance increases, what happens to the current?

• The current increases.

• The current decreases.

• The current remains the same.

• The current fluctuates randomly.

How do you calculate resistance using Ohm's Law?

• R = V × I

• R = I / V

• R = I + V

• R = V / I

How do you calculate current using Ohm's Law?

• I = V × R

• I = R / V

• I = R + V

• I = V / R