61. In a distortion factor meter, the filter at the front end is used to suppress
62. A tachometer encoder can be used for measurement of speed:
63. Hooke's law is written as
64. A rotameter works on the principle of variable:
65. A pulse waveform with a 3.3 kΩ source resistance is to be displayed on an oscilloscope with an input capacitance of 15 pF. The rise time of the pulse shown on the scope is measured as
66. Which errors arise due to the hysteresis of the equipment or due to friction
67. What are the salient features of thermistors?
1. They are compact, rugged and inexpensive
2. They have good stability when properly aged
3. The response time of thermistors can vary from a fraction of a second to minutes, depending on the size of the detecting mass and thermal capacity of the thermistor
1. They are compact, rugged and inexpensive
2. They have good stability when properly aged
3. The response time of thermistors can vary from a fraction of a second to minutes, depending on the size of the detecting mass and thermal capacity of the thermistor
68. Which instrument has the highest frequency range with accuracy within reasonable limits?
69. While transporting a sensitive galvanometer
70. What is the dynamic range of a spectrum analyzer with a third order interrupt point of +25 dBm, and a noise level of (-)85 dBm.
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