Measurement and Instrumentation A galvanometer has Eddy current damping Fluid friction damping Spring coil damping Air friction damping Eddy current damping Fluid friction damping Spring coil damping Air friction damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 600∠-150° ohm. 300∠90° ohm. 150∠30° ohm. 400∠-90° ohm. 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 252 V. 250 V. 248 V. 260 V. 252 V. 250 V. 248 V. 260 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is 100 µNm. 200 µNm. 1 µNm. 2 µNm. 100 µNm. 200 µNm. 1 µNm. 2 µNm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Standardization of potentiometer is done in order that, they become accurate and direct reading. accurate. accurate and precise. precise. accurate and direct reading. accurate. accurate and precise. precise. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Square-law scale Logarithmic scale Linear scale Exponential scale Square-law scale Logarithmic scale Linear scale Exponential scale ANSWER DOWNLOAD EXAMIANS APP