NEET 2020 Model Question Paper 1

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Question : 15 of 180

Marks: +1, -0

If power in external resistance R is maximum then :-

(i) R = r
(ii) Power in R is

E2

4R

(iii) Input power

E2

2R

(iv) Efficiency is 50%

(i), (ii)
(i), (iii)
(i), (ii), (iii)
All

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