Measurements and Instrumentation

Assertion (A): Hay's bridge in particularly suitable for measuring inductance having a comparatively low resistance. Reason (R): In Hay's bridge the value of frequency supply must be known.

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

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

C A is true R is false

D A is false R is true

ANS:B - Both A and R are true but R is not correct explanation of A

Hay's bridge is suitable for high Q measurement, and Q is inversely proportional to the resistance for quality factor formula Q=WL/R se.

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