Consider a moving coil galvanometer (MCG) : A : The torsional constant in moving coilgalvanometer has dimensions

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📘Question

Consider a moving coil galvanometer (MCG) :
A : The torsional constant in moving coil galvanometer has dimensions [ML^2T^–2]
B : Increasing the current sensitivity may not necessarily increase the voltage sensitivity.
C : If we increase number of turns (N) to its double (2N), then the voltage sensitivity doubles.
D : MCG can be converted into an ammeter by introducing a shunt resistance of large value in parallel with galvanometer.
E : Current sensitivity of MCG depends inversely on number of turns of coil.  

Choose the correct answer from the options given below :
(1) A, B only                  (2) A, D, only
(3) B, D, E only              (4) A, B, E only      (JEE-2025) 

✅ Answer

Consider a moving coil galvanometer (MCG) : A : The torsional constant in moving coil galvanometer has dimensions [ML^2T^–2] B : Increasing the current sensitivity may not necessarily increase the voltage sensitivity. C : If we increase number of turns (N) to its double (2N), then the voltage sensitivity doubles. D : MCG can be converted into an ammeter by introducing a shunt resistance of large value in parallel with galvanometer. E : Current sensitivity of MCG depends inversely on number of turns of coil.   Choose the correct answer from the options given below : (1) A, B only                  (2) A, D, only (3) B, D, E only              (4) A, B, E only 

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