There are a few questions which have always bugged me. Unfortunately, due to time constraints, I end up memorizing an example, hoping to imitate that knowledge in an exam question. Consider the following situation, given a circuit with a battery (negligible internal resistance) and a light bulb that is glowing. Let $V$ denote the emf and let $I$ denote the current flowing in the circuit.
1) By increasing which variable will we be able to increase the Brightness of the Bulb?
2) This is a more specific question: Suppose the Bulb is glowing normally (given the initial conditions [$V,I$]) then if consider this new circuit (illustrated below). $R$ is a resistor with Resistance equal to $R$. The question is: What will be the resulting emf?
No comments:
Post a Comment