List of practice Questions

The counter method used for counting of the blood cells is based in the principle of the:
The transmittance of a particular solution measured is $T$. The concentration of the solution is now doubled. Assuming that Beer-Lambert’s law holds good for both the cases, the transmittance for the second would be:
In a spectrophotometer, the monochromator must be able to resolve two wavelengths 599.9 nm and 600.1 nm. The required resolution is:
Which of the following is the value for the action potential of a cell?
The mathematical basis for Nuclear Magnetic Resonance (NMR) states that if $\mu$ is the nuclear magnetic moment of the molecule, the gyromagnetic ratio is proportional to:
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?
The resistance can be measured most accurately by:
Schering bridge is used to:
X and Y plates of a CRO are connected to unequal voltages of equal frequency with phase shift of $90^\circ$. The Lissajous pattern observed on the CRO screen is ............
Q meter operates on the principle of:
What is the main advantage of a JFET-cascade amplifier?
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:
Piezoelectric crystals produce an EMF when:
The least suitable transducer for static pressure measurement is:
A linear variable differential transformer (LVDT) is:
A properly biased JFET will act as a:
The type of power amplifier which exhibits crossover distortion in its output is:
Which one of the following oscillators is used for generation of high frequencies?
A 741-type op-amp has a gain bandwidth product of 1 MHz. A non-inverting amplifier using this op-amp and having a voltage gain of 20 dB will exhibit a 3 dB bandwidth of:
What is the order of minimum displacement that can be measured with a capacitive transducer?
Capacitive transducers are normally used for:
To reduce the effect of fringing in a capacitive type transducer,
Piezoelectric transducers are: