The current sensitivity of a galvanometer can be increased by: (A) decreasing the number of turns (B) increasing the magnetic field (C) decreasing the area of the coil (D) decreasing the torsional constant of the spring Choose the most appropriate answer from the options given below :

Question

The current sensitivity of a galvanometer can be increased by: (A) decreasing the number of turns (B) increasing the magnetic field (C) decreasing the area of the coil (D) decreasing the torsional constant of the spring Choose the most appropriate answer from the options given below : (A) (B) and (C) only (B) (C) and (D) only (C) (A) and (C) only (D) (B) and (D) only

Tardigrade Admin · Accepted Answer

i =(( K / NAB )) θ ∴ ( d θ/ di )=( NAB / K )

Q. The current sensitivity of a galvanometer can be increased by :
(A) decreasing the number of turns
(B) increasing the magnetic field
(C) decreasing the area of the coil
(D) decreasing the torsional constant of the spring
Choose the most appropriate answer from the options given below :

(B) and (C) only

(C) and (D) only

(A) and (C) only

(B) and (D) only

$i = (\frac{K}{N A B}) θ$
$∴ \frac{d θ}{d i} = \frac{N A B}{K}$

Q. The current sensitivity of a galvanometer can be increased by : (A) decreasing the number of turns (B) increasing the magnetic field (C) decreasing the area of the coil (D) decreasing the torsional constant of the spring Choose the most appropriate answer from the options given below :