10+ OHM NAVAGRAGA ENTERPRISES Interview Questions and Answers

Arrange 4 balls equidistant from each other in space.

• Place 3 balls in a triangle formation on the same plane

• Place the 4th ball directly above the center of the triangle

• Ensure that the distance between each ball is equal

• Alternatively, place the 4 balls at the vertices of a tetrahedron

Resistances in series: R, 5R, 9R, 13R... What is the cumulative resistance?

• Add all resistances to get the cumulative resistance

• Cumulative resistance = R + 5R + 9R + 13R + ...

• The formula for the nth term is Tn = R + (n-1)4R

• The sum of n terms is Sn = n/2(2R + (n-1)4R)

The rough output of the black box is a rectangular pulse with the lie frequencies removed.

• The black box filters out lie frequencies from the input rectangular pulse.

• The output is a rectangular pulse with only the truthful frequencies remaining.

• The exact shape and characteristics of the output pulse depend on the specific design of the black box.

The output will have the high frequency components of the rectangular pulse removed.

• The output will have a smoother shape compared to the input.

• The sharp edges of the rectangular pulse will be rounded off.

• The duration of the pulse will remain the same.

• The amplitude of the pulse may be attenuated depending on the characteristics of the black box.

• The output may exhibit ringing or overshoot due to the removal of high frequency components.

To swap the values of 2 variables without a temporary variable, use bitwise XOR operation.

• Use bitwise XOR operation to swap the values of two variables without a temporary variable

• For example, if a = 5 and b = 7, after swapping, a = 2 and b = 5

• To generalize for cyclic rotations of N variables, use a loop and bitwise XOR operation

A 2:1 multiplexer can be used as an AND gate by connecting one input to logic 1 and the other input to the desired input signal.

• Connect one input of the 2:1 multiplexer to logic 1 (high voltage) and the other input to the desired input signal.

• Set the select input of the multiplexer to logic 0 (low voltage) to select the input connected to logic 1.

• The output of the multiplexer will then be the logical AND of the selected input and the desired input signal.

Yes, 4 equidistant points can exist in space.

• Equidistant points are points that are equally spaced apart from each other.

• In a 2D space, 4 equidistant points can form a square.

• In a 3D space, 4 equidistant points can form a tetrahedron.

• Equidistant points can also exist in higher dimensions.

A transducer is a device that converts one form of energy into another. It typically consists of a sensor, signal conditioning circuitry, and an output interface.

• A transducer converts one form of energy into another.

• It consists of a sensor that detects the input energy.

• Signal conditioning circuitry processes and amplifies the sensor signal.

• The output interface converts the processed signal into a usable form.

• Examples of transducers include microphones, thermocouples, and pres...read more

Analog circuits are essential for interfacing with the real world and processing continuous signals.

• Analog circuits are used in a wide range of applications, from audio amplifiers to power management systems.

• Analog circuits are necessary for interfacing with sensors and other real-world devices that produce continuous signals.

• Analog circuits can often provide higher accuracy and lower noise than digital circuits in certain applications.

• Analog circuits require a deep understan...read more