1) Which mathematical notation specifies the condition of periodicity for a continuous time signal? a. x(t) = x(t +T0) b. x(n) = x(n+ N) c. x(t) = e-αt d. None of …

1) Notch filter is a a. Band pass filter b. Band stop filter c. Low pass filter d. High pass filter ANSWER: (b) Band stop filter 2) Noise is added to a …

1) FM is advantageous over AM as a. The amplitude of FM is constant. So transmitter power remains unchanged in FM but it changes in AM b. The depth of modulation …

1) Square law modulators a. Have non linear current-voltage characteristics b. Are used for Amplitude Modulation c. Are used for frequency modulation d. Both a and b are correct ANSWER: (d) …

1) Amplitude modulation is a. Change in amplitude of the carrier according to modulating signal b. Change in frequency of the carrier according to modulating signal c. Change in amplitude of …

1) In uniform quantization process a. The step size remains same b. Step size varies according to the values of the input signal c. The quantizer has linear characteristics d. Both …

Combinational logic circuits or gates are the basic building blocks of all digital systems. These circuits or gates perform Boolean operations on multiple input variables and determine the outputs as …

The inverter is truly the nucleus of all digital designs. Once its operation and properties are clearly understood, designing more intricate structures such as NAND gates, adders, multipliers, and microprocessors …

MOS Transistor The Complementary MOSFET (CMOS) technology is widely used today to form circuits in almost all applications. Now a days all computers, CPUs and cell phones make use of …

FPGA – Introduction The full form of FPGA is “Field Programmable Gate Array”. It contains ten thousand to more than a million logic gates with programmable interconnection. Programmable interconnections are …