The Resistance of 60 W Light Bulb vs 100 W Light Bulb

Understanding Wattage and Resistance in Light Bulbs

In the world of lighting, wattage plays a crucial role in determining the brightness of a light bulb. Wattage is the power consumed by a light bulb when it is connected across a certain potential difference, usually expressed in volts (V). For instance, when we connect a light bulb rated at 60 watts to a 120 V potential difference, it consumes 60 watts of power.

Now, let's delve into the concept of resistance in light bulbs. Resistance is the opposition to the flow of electric current, measured in ohms. The resistance of a light bulb determines how much current will flow through it when connected to a power source.

Comparing the Resistance of 60 W and 100 W Light Bulbs

Now, the question arises: How does the resistance of a 60 W light bulb compare to that of a 100 W light bulb?

Question:

A. The 100 W bulb has the same resistance

B. The 100 W bulb has more resistance

C. The 100 W bulb has less resistance

Answer:

The answer is C.

120 V with 60 W light bulb is 240 ohms.

120 V with 100 W light bulb is 144 ohms.

The 100 W bulb has less resistance :)