71. A 0-250 V voltmeter has guaranteed accuracy of 1% full-scale reading (deflection). The voltage measured by this instrument is 100 V. The limiting error is given by
72. A 0-200 V voltmeter has a sensitivity of 1 kΩ/V. The resistance of the voltmeter is
73. Most common form of A.C. meters met with in every day domestic and industrial installation are
74. Volt Ratio box (VR box) is used in conjuction with
75. The FM telemetry as compared with AM telemetry requires a channel that is
76. Which of the following is correct?
77. Which of the following meters is based on the principle of Hall Effect?
78. Hysteresis error, in moving iron instruments may be reduced by using
79. A thermistor has a resistance temperature coefficient of -2% over a temperature range of 25°C to 50°C. If the resistance is 50 Ω at 25°C. What is the resistance at 45°C ?
80. Consider the following statements associated with electrical/electronic transducers:
1. Mass-inertia effects are minimized
2. These transducers consume very little power
3. The response time is large
4. Transmission and processing the signal for the purpose of measurement are easier
Select the correct answer using the options given below:
1. Mass-inertia effects are minimized
2. These transducers consume very little power
3. The response time is large
4. Transmission and processing the signal for the purpose of measurement are easier
Select the correct answer using the options given below:
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