Consider the circuit given below where A, B and C are three identical light bulbs of constant resistance.

(a) List the bulbs in order of increasing brightness.
(b) IF C burns out, what will be the brightness of A and C compared with before?
(c) If B burns out instead, what will be the brightness of A and C compared with before?

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Solution

(a) A and B are the same; C is brighter
(b) The same
(c) A goes out; C remains the same

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(a) A and B are the same; C is brighter (b) The same (c) A goes out; C remains the same

(a) A and B are the same; C is brighter
(b) The same
(c) A goes out; C remains the same