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Electronics and Communication Engineering - Measurements and Instrumentation

Exercise : Measurements and Instrumentation - Section 6
1.
The Y plates of a CRO are excited by a voltage 2 sin 100 t and the X plates are not connected. The display would be
a vertical line
a horizontal line
sine wave
slant line
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Heating effect of current is used in
ammeters
voltmeters
both ammeters and voltmeters
wattmeters
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The coils of Drysdale polar potentiometer are wound non-inductively.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
In figure the output V0 is
2V1 + V2 - 2V3
2(V1 + V2) - V3
V1 + V2 + V3
V1 + 2V2 - V3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Magnetic effect of current is used in
ammeters
voltmeters
wattmeters
ammeters, voltmeters, wattmeters and energy meters
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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