Physics · Current Electricity
In a bridge circuit containing resistors P, Q, R, and a galvanometer G, it is found that the reading of the galvanometer remains unchanged whether the switch S in the galvanometer path is open or closed. If IP, IQ, IR, and IG represent currents through the respective branches, which relation must hold true?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1IQ = IG
- 2IP = IG
- 3IR = IG✓
- 4IQ = IR
Correct answer
IR = IG
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