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NEET PHYSICSUNITS AND MEASUREMENTSEasy

Question

In SI, Henry is the unit of:

A

Self inductance

B

Mutual inductance

C

(1) and (2) both

D

None of the above

Step-by-Step Solution

  1. Definition: The Henry (symbol: H) is the SI derived unit of inductance.
  2. Application: It is used as the unit for both Self-inductance (LL) and Mutual inductance (MM).
  3. Source Verification: According to the NCERT Physics text, the constant of proportionality LL (self-inductance) has the SI unit of henry . Similarly, the coefficient MM (mutual inductance) corresponds to the same physical dimension (flux linkage per ampere) and is also measured in henry .
  4. Dimensional Analysis: Both quantities define the relationship between induced emf and the rate of change of current (ε=−LdIdt\varepsilon = -L \frac{dI}{dt} or ε=−MdIdt\varepsilon = -M \frac{dI}{dt}), resulting in the same unit .

Exam Context & Concepts Covered

This question aligns with the NEET PHYSICS syllabus, specifically targeting concepts from UNITS AND MEASUREMENTS. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

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