Measurement and Instrumentation What is the expression for momentum? mass × velocity change of velocity / time force × displacement mass × acceleration mass × velocity change of velocity / time force × displacement mass × acceleration 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. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used? 1 Ohm 2 Ohms 1/49.99 ohms 49.99 Ohms 1 Ohm 2 Ohms 1/49.99 ohms 49.99 Ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion(A): A low power factor wattmeter has special constructional features to ensure accurate measurment. Reason(R): Extension of wattmeter range in DC circuit can be easily done by using current and potential transformer Both A and R is true and R is not correct explanation of A. A is false R is true. A is true R is false. Both A and R is true and R is correct explanation of A C. Both A and R is true and R is not correct explanation of A. A is false R is true. A is true R is false. Both A and R is true and R is correct explanation of A C. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a ballistic galvanometer, the deflecting torque is proportional to The current through coil Square of current through coil Square-root of current through coil Sine of measured The current through coil Square of current through coil Square-root of current through coil Sine of measured ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Linear scale Logarithmic scale Exponential scale Square-law scale Linear scale Logarithmic scale Exponential scale Square-law scale ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements 2 and 3 are correct 1 and 3 are correct 1 and 2 are correct 1, 2 and 3 are correct 2 and 3 are correct 1 and 3 are correct 1 and 2 are correct 1, 2 and 3 are correct ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS