Electronics and Communication Engineering - Measurements and Instrumentation - Discussion
Discussion Forum : Measurements and Instrumentation - Section 2 (Q.No. 39)
39.
A sinusoidal ac voltage of amplitude 100 V is applied to a rectifying device which offers 10 Ω resistance in forward direction and infinite resistance in reverse direction. The reading on hot wire ammeter will be
Answer: Option
Explanation:
Hot wire ammeter indicates rms value
.
Discussion:
2 comments Page 1 of 1.
Mukund said:
8 years ago
How, can anyone explain?
ZAFER KHAN said:
7 years ago
Because the hot wire ammeter read rms value and the rms value for the half wave rectifier is half the Maximum current Im/2.
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