Statement (I) : If the number of turns in the coil of a moving coil galvanometer is doubled then the current sensitivity becomes double.
Statement (II) : Increasing current sensitivity of a moving coil galvanometer by only increasing the number of turns in the coil will also increases its voltage sensitivity in the same ratio In the light of the above statements, choose the correct answer from the options given below:

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

Statement I is false but Statement II is true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Both Statement I and Statement II are true

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Current sensitivity
$I_{s} = \frac{θ}{I} = \frac{NBA}{C} αN Voltage sensitivity v_{s} = \frac{θ}{v} = \frac{I_{s}}{R_{g}} = \frac{NBA}{{CR}_{g}} ∴ statement I is true but statement II is false.$

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th