Question

With a potentiometer, null points were obtained at 140 cm and 180 cm with the cells of emf 1.1 V and one of unknown value respectively. The unknown emf is *

2 points

1.1 V

1.8 V

1.4 V

1.41 V

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With a potentiometer, null points were obtained at 140 cm and 180 cm with the cells of emf 1.1 V and one of unknown value respectively. The unknown emf is *

2 points

1.1 V

1.8 V

1.4 V

1.41 V

Back

Submit




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Answer 1

Answer:

E1÷E2=L1÷L2

E1= 1.1

E2=?

L1=140

L2=180

values applying on equation we get 1.41 V