Measurement and Instrumentation What is the approximate input impedance of a CRO? 10 MΩ 0 1 MΩ 100 MΩ 10 MΩ 0 1 MΩ 100 MΩ ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The repeat accuracy of an instrument can be judged from its Standard deviation of error Static error Dynamic error Linearity error Standard deviation of error Static error Dynamic error Linearity error ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance ± 1% ± 2.5% ± 3.5% ± 1.5% ± 1% ± 2.5% ± 3.5% ± 1.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A null type instrument as compared to a deflected type instrument has a higher accuracy. All of these a lower sensitivity. a faster response. a higher accuracy. All of these a lower sensitivity. a faster response. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 4 5 1 2 4 5 1 2 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is 3% 5% 6% 4% 3% 5% 6% 4% ANSWER DOWNLOAD EXAMIANS APP
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