Measurement and Instrumentation
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used?

99.99 ohms
100 K ohms
99.99 K ohms
100 ohms

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Measurement and Instrumentation
The measurment of very low and very high frequencies is invariably done using a frequency counter in which one of the following?

 Frequency measurment modes only.
  Period and frequency measurement modes respectively.
 Frequency and period measurment modes, respectively.
 Period measurment modes only.

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