Measurement and Instrumentation The resistance offered to the passage of an in-varying current by a column of mercury at the temperature of melting ice of mass 14.4521 gms of uniform cross-sectional area and length 106.3cm is One ohm according to SI units One ohm according to working standards One international ohm Standard ohm One ohm according to SI units One ohm according to working standards One international ohm Standard ohm ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Standard resistor ia made from Manganin Platinum Nichrome Silver Manganin Platinum Nichrome Silver ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by Changing number of turns of operating coil A multiplier A shunt None of the listed here Changing number of turns of operating coil A multiplier A shunt None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? mass × velocity force × displacement mass × acceleration change of velocity / time mass × velocity force × displacement mass × acceleration change of velocity / time ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is small. high. ideally zero. very high. small. high. ideally zero. very high. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 3 mA. 1 mA. 4 mA. 2 mA. 3 mA. 1 mA. 4 mA. 2 mA. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS