Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 1 (Q.No. 34)

Measurements and Instrumentation

34.

Assertion (A): A hot wire ammeter has a cramped scale.

Reason (R): The heat is proportional to square of current.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not correct explanation of A

A is true R is false

A is false R is true

Answer: Option

Explanation:

Since heating ∝ I², scale is cramped.

Discussion:

2 comments Page 1 of 1.

Mayur said: 9 years ago

What is cramped scale?

Soumya said: 8 years ago

Cramped means not having an enough space or time. Hot wire a meter has cramped scale bcos heat is proportional to I'2.

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