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Electronics and Communication Engineering - Electronic Devices and Circuits

Exercise : Electronic Devices and Circuits - Section 7
6.
A digital voltmeter can count from 0 to 9999. If full scale reading is 9.999 V, the resolution of full scale reading is
0.001
1000
2 digit
1 mV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The most serious problems in ac bridge measurement is
eddy currents
leakage current
residual magnetism
stray fields
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.

Assertion (A): An electrostatic voltmeter is free from hysteresis and eddy current errors.

Reason (R): An electrostatic voltmeter has a number of fixed and moving vanes in parallel.

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:
No answer description is available. Let's discuss.
9.
The pointer of an indicating instrument should be
very light
very heavy
neither heavy nor light
heavy
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The resistance of resistance strain gauge is about
5 Ω
50 Ω
120 Ω
0.5 Ω
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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