Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
Assertion: Reduction factor k of a tangent galvanometer helps in reducing deflection of current.

Reason: As reduction factor increases with increase of current.
PhysicsMagnetic Properties of MatterNEET
Options:
  • A If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
  • B If both Assertion and Reason are true but Reason is not explanation of the Assertion.
  • C If Assertion is true but the Reason is false.
  • D If Assertion is false but Reason is true.
Solution:
2200 Upvotes Verified Answer
The correct answer is: If Assertion is true but the Reason is false.
In tangent galvanometer current is directly proportional to the deflection and reduction factor helps in reducing reflection of the current.
The Reduction factor doesn't depend on current but on the construction of the instrument.

I=k ϕNBA 

 The assertion is true but the Reason is false.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play