To explain: The brightness of bulb B, if bulb A is removed from the circuit.
Answer to Problem 1CQ
The brightness of bulb B does not change, when bulb A is removed from the circuit.
Explanation of Solution
Refer to FIGURE Q23.1 in the textbook.
Consider
Since the two bulbs are connected in parallel, the potential difference
Redraw the FIGURE Q23.1 as shown in Figure 1 by removing bulb A.
When a bulb A is removed from the circuit, as the potential difference across the bulb B remains same that is
Conclusion:
Thus, the brightness of bulb B does not change, when bulb A is removed from the circuit.
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Chapter 23 Solutions
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