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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 10
26.
If the load current is high, the pressure coil of wattmeter should be connected directly across the load.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In measurements using CRO, Lissajous patterns are used to
measure magnitude of peak voltage
measure frequency
measure impedance
measure current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A dynamometer wattmeter is suitable for both dc and ac.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
If Ey is the voltage applied to Y plates, the vertical deflection of beam is proportional to
Ey
Ey
Ey1.5
Ey2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The method of frequency compensation in moving iron voltmeter is
to use a capacitor in series with coil
to connect a capacitor in parallel with coil
to connect a capacitor in parallel with series resistance
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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