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In Fig. 26.5, the battery has appreciable internal resistance. Whathappens to th

ID: 1751356 • Letter: I

Question



In Fig. 26.5, the battery has appreciable internal resistance. Whathappens to the brightness of bulb B1 after weclose the switch S?

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Mark the right answer
1)The brightness decreases permanently.
2)The brightness decreases temporarily but gradually increases backto its original brightness.
3)The brightness increases permanently.
4)The brightness does not change
5)The brightness increases temporarily but gradually decreases backto its original brightness.

Explanation / Answer

decreases permanantly

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In Fig. 26-32, a battery of potential difference V = 27 V is connected to a resi
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In Fig. 27-54, the resistances are R1 = 1.3 O and R2 = 2.1 O, and the ideal batt