Question

Tell its right answer plz.
Don't post irrelevant answers!!​

Answer 1

Answer:

R=v/I

2/5=0.4ohm

when I =0 then potential reading is 2volt

E=2 volt

option (2) is right

Answer 2

Answer:

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$v = e - ir$

When i =0 ithe potential reading is 2V.

Hence emf is .2V.

When V=0, i=5A This gives r=0.4π

hence options second is right answer