List of top Instrumentation Engineering Questions on Electrical and Electronic Measurements

A \( 10\,\mu\text{F} \) capacitance charged to \( 10\,\text{V} \) has a stored charge equal to:

A thermistor has a resistance of \( 10\,\text{k}\Omega \) at \( 25^\circ\text{C} \) and \( 1\,\text{k}\Omega \) at \( 100^\circ\text{C} \). The range of operation is \( 0^\circ\text{C} \) to \( 150^\circ\text{C} \). The excitation voltage is 5 V and a series resistor of \( 1\,\text{k}\Omega \) is connected to the thermistor. The power dissipated in the thermistor is: 

 

A piezoelectric type accelerometer has a sensitivity of 100 mV/g. The transducer is subjected to a constant acceleration of 5 g. The steady-state output of the transducer will be:
The energy required to charge a \( 10\,\mu\text{F} \) capacitor to \( 100\,\text{V} \) is:

If $R_1 = R_2 = R$ and $R_3 = 1.1R_4$ in the bridge circuit shown in figure, then the reading in the ideal voltmeter connected between $a$ and $b$ is:

In the below circuit, the value of $V_1$ is:

Kirchhoff's current law is valid for:
The internal resistance of armature should ideally be:
A $100\ \Omega$, 1 W resistor and a $800\ \Omega$, 2 W resistor are connected in series. The maximum DC voltage that can be applied continuously to the series circuit without exceeding the power limit of any of the resistors is:
For increasing the range of voltmeter, connect a:
In electrodynamometer type wattmeter, the inductance of pressure coil produces error. The error is:
The phenomena of ‘creeping’ occurs in:
A moving-coil instrument gives full-scale deflection for 1 mA and has a resistance of $5\ \Omega$. If a resistance of $0.55\ \Omega$ is connected in parallel to the instrument, what is the maximum value of current it can measure?
In a permanent magnet moving coil instrument, if the control spring is replaced by another one having a higher spring constant, then the natural frequency and damping ratio will:
Rectifier moving coil instrument responds to:
In calibration of a dynamometer Wattmeter by potentiometer, phantom loading arrangement is used because:
The resistance can be measured most accurately by:
Schering bridge is used to:
Q meter operates on the principle of:
A PMMC meter rated at 100 $\mu$A is used in a rectifier type of instrument which uses full wave rectification. What is the sensitivity on sinusoidal AC?
PMMC type instrument normally used for:
Kelvin’s double bridge is used for the measurement of:
Two resistances $100 \pm 5\,\Omega$ and $150 \pm 15\,\Omega$ are connected in series. If the errors are specified as standard deviations, the resultant error will be:
Which of the following is an inverse transducer?