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NEET UG PHYSICS MCQ: CURRENT ELECTRICITY

1 Hard

1 of 1

Application +4 | -1

In the series combination of

n

cells each cell having emf

\varepsilon

and internal resistance

r

. If three cells are wrongly connected, then total emf and internal resistance of this combination will be

View answer and explanation

Correct option: D

(n \varepsilon-6 \varepsilon), n r

Option D (

(n \varepsilon-6 \varepsilon), n r

) is correct because the total emf is reduced by

6 \varepsilon

due to the wrongly connected cells, while the internal resistance remains

nr

.

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\mathrm{is}\,\,\mathrm{/}\,\,\mathrm{are}