Questions
Statement 1: If three identical bulbs are connected in series as shown in figure, then on closing the switche bulb C is short circuited and hence illumination of bulbs A and B decreases.
Statement 2: Voltage on A and ,B decreases.
detailed solution
Correct option is D
When switch S is closed, bulb C is short circuited, so voltage V distributes only in two parts i.e., voltage on Bulb A and B increases as compared previously. Hence, illumination of bulb A and B increases.Talk to our academic expert!
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A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
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