Question

Consider two identical galvanometers and two identical resistors with resistance R. If the internal resistance
of the galvanometers Rᴄ < R/2, which of the following statement(s) about any one of the galvanometers
is(are) true?
(A) The maximum voltage range is obtained when all the components are connected in series
(B) The maximum voltage range is obtained when the two resistors and one galvanometer are connected in
series, and the second galvanometer is connected in parallel to the first galvanometer
(C) The maximum current range is obtained when all the components are connected in parallel
(D) The maximum current range is obtained when the two galvanometers are connected in series and the
combination is connected in parallel with both the resistors

Answer 1

Answer:

Answer is A and C

Explanation:

This would happen when all components are in series.

For maximum current,

S

eq.

will be Parallel combination of two shunt and one galvanometer since in that case max current would flow through R

g

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Answer 2

Answer:

option A and C is correct