Test: Electronics & Communication- 1 - Electrical Engineering (EE) MCQ

The capacitance and loss angle of a given capacitor specimen are best measured by

Wagner's earth devices are used in ac bridge circuits to

The gauge factor is defined as

Hot wire anemometer is a device used to measure the

If the response of a system to an input does not depend on the future values of the input, then which one of the following is true for the system ?

The discrete time system described by y(n) = x(n)² is

Effective Q of the equivalent electrical circuit of quartz crystal is of the order of

The converse of magnetostriction effect is

The phenomenon known as "Early Effect" in a bipolar transistor refers to a reduction of the effective base-width caused by

Which of the following are true for h-parameters of transistors ?

1. They are real numbers at audio frequencies

2. They are easy to measure

3. They vary widely with temperature

Select the correct answer using the code given below:

Which one of the following bridges will be used for the measurement of very low resistance ?

The X- and Y-inputs of a CRO are respectively V sin φt and -V sin φt . The resulting Lissajous pattern will be

In a bistable multivibrator, commutating capacitors are used to

The switching circuit given in the figure can be expressed in binary logic notation as

Assuming that only logic inputs X and Y are available and their complements  and  are not available, the minimum number of two-input NAND gates required to implement  would be

Which one of the following is not a property of root loci

For frequencies up to 1650 kHz, the transmitting antenna used is a