To identify: whether bulbs 2 and 3 are identical or not.
Explanation of Solution
Introduction:
If the resistor is added to the circuit at the point
It is given that
Since the bulbs are connected in series, same current flows through them. The power dissipation is given by
Here,
Since the voltage drops across the bulbs are different, the power dissipation or the brightness of the bulbs will be different. Thus, one of the bulbs will be brighter than other.
Conclusion:
Hence, the bulb 2 and 3 are not identical.
Chapter 23 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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