Measurement and Instrumentation The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when R1 = 3R2. R1 = 2R2. R1 = R2/2. R1 = R2. R1 = 3R2. R1 = 2R2. R1 = R2/2. R1 = R2. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and an AC voltage source V2 = 3sin4t, the voltmeters reads 2 V. 0 V. (2 + √3/2)V. 5 V. 2 V. 0 V. (2 + √3/2)V. 5 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Resistances can be measured with the help of Ammeters Ohmmeters and resistance bridges Voltmeters Wattmeters Ammeters Ohmmeters and resistance bridges Voltmeters Wattmeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be 260 V. 248 V. 252 V. 250 V. 260 V. 248 V. 252 V. 250 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An Ohmmeter is a Moving coil instrument Dynamometer instrument None of the listed here Moving iron instrument Moving coil instrument Dynamometer instrument None of the listed here Moving iron instrument ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The measurement of a quantity is a comparison of an unknown quantity with known quantity. is a comparison of an unknown quantity with standard. is a comparison of an unknown quantity with another quantity. none of these. is a comparison of an unknown quantity with known quantity. is a comparison of an unknown quantity with standard. is a comparison of an unknown quantity with another quantity. none of these. ANSWER DOWNLOAD EXAMIANS APP
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