Understanding Ohm's Law

Who developed Ohm's Law?

• Albert Einstein

• Andre Ampere

• Isaac Newton

• Georg Ohm

What does Ohm's Law relate?

• Pressure, Volume, and Temperature

• Mass, Velocity, and Acceleration

• Energy, Power, and Force

• Voltage, Current, and Resistance

What is the formula for calculating voltage according to Ohm's Law?

• Voltage = Current + Resistance

• Voltage = Resistance / Current

• Voltage = Current / Resistance

• Voltage = Current x Resistance

What does the letter 'I' represent in electrical terms?

• Current

• Impedance

• Intensity

• Inductance

If the resistance is 3 Ohms and the current is 2 Amps, what is the voltage?

• 9 Volts

• 1 Volt

• 5 Volts

• 6 Volts

What happens to the current if the voltage is doubled?

• It doubles

• It halves

• It remains the same

• It quadruples

What is the resistance if the voltage is 12 volts and the current is 0.5 Amps?

• 18 Ohms

• 24 Ohms

• 6 Ohms

• 12 Ohms

What is the relationship between current and resistance?

• Directly proportional

• Not related

• Inversely proportional

• Equal to each other

What is the purpose of a resistor in a circuit?

• To store energy

• To increase current

• To reduce current and protect components

• To generate light

What will the current be if a lamp with a resistance of 240 Ohms is connected to a 120 volts outlet?

• 0.4 Amps

• 0.3 Amps

• 0.6 Amps

• 0.5 Amps