How to Determine the Source of Power for a Lamp

What happens when you plug a lamp into an electrical outlet?

a. current.

b. voltage.

c. resistance.

d. all of these

Answer:

Plugging a lamp into an electrical outlet gives the lamp a source of voltage. The answer is letter B. The rest of the choices do not answer the question above.

When you plug a lamp into an electrical outlet, you are providing the lamp with a source of voltage. Voltage is the electrical force that drives current through a circuit, allowing the lamp to light up and function.

It is important to remember that the lamp is powered by the voltage supplied by the outlet, which is typically around 120 volts in the United States. This voltage provides the necessary energy for the lamp to operate and produce light.

Resistance is another important factor in the circuit, but it does not come directly from plugging the lamp into the outlet. Resistance is the opposition to the flow of electric current, which affects the amount of current that flows through the lamp and ultimately determines the brightness of the light produced.

So, the next time you plug in a lamp, remember that you are giving it a source of voltage that powers its operation. Make sure to always use proper electrical safety precautions when dealing with electrical outlets and appliances.