Ohm Exercise-2: Solution

In Brief

This page includes solutions to the set of questions related to an electric bulb.
This helps learners to ensure their learning on aspects of physics in general but also how to find the resistance of the filament of the bulb when glowing.
It is strongly recommended to do the practice quiz before looking at the provided answers.

Question:

Having an electric bulb at home that draws a current of 3.0 A at a voltage of 9.0 V.

Find the resistance of the filament of the bulb when glowing.

Solution:

Using the formula I = ε / R We obtain R = ε / I = 9 V / 3 A = 3 Ω

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