71. The _________ of a recording system is the magnitude of input voltage required to produce a standard deflection in a recorded trace.
72. Pre amplifier isolation in ECG circuit is to
73. LVDT windings are wound on
74. The input resistance of a VTVM is about ___________.
75. When a number of components are fabricated on same IC chip it is necessary to provide isolation between two different components for input interconnection is called __________.
76. Piezo electric crystal can produce an emf
77. A strain gauge is a passive transducer and is employed for converting.
78. The most accurate device for measuring voltage is ___________.
79. Photo multiplier consists of
80. For biomedical applications the mostly used amplifier is
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