Units and Measurements · Significant figures & errors
To compare EMF of two cells using potentiometer the balancing lengths obtained are 200 cm and 150 cm. The least count of scale is 1 cm. The percentage error in the ratio of EMFs is
- (1)1.45
- (2)1.65
- (3)1.75
- (4)1.55
Flawed question. No option is correct: (the source's own solution says no option matches) and no evident intended version gives the key 1.65. It is shown for completeness and is left out of practice tests.
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