Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Moving iron Thermocouple Dynamometer Hot wire Moving iron Thermocouple Dynamometer Hot wire ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The moving coil-meters, damping is provided by eddy current disk. the coil spring attached to the moving. damping vane in the airtight chamber. the aluminium frame of the coil. eddy current disk. the coil spring attached to the moving. damping vane in the airtight chamber. the aluminium frame of the coil. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The quantity 1/√(∈0 × μ0) in SI units has the none of these. both ‘a’ and ‘b’. dimension LT-1. speed of light. none of these. both ‘a’ and ‘b’. dimension LT-1. speed of light. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used because they take least time in measurement. because they are expensive. when a high accuracy of measurement is required. because they are most simple. because they take least time in measurement. because they are expensive. when a high accuracy of measurement is required. because they are most simple. ANSWER DOWNLOAD EXAMIANS APP
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 99.99 K ohms 100 K ohms 100 ohms 99.99 ohms 99.99 K ohms 100 K ohms 100 ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of Weston standard cell is of order of 1000 ohm. 10 ohm. 1 ohm. 100 ohm. 1000 ohm. 10 ohm. 1 ohm. 100 ohm. ANSWER DOWNLOAD EXAMIANS APP
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