1. For a switch circuit where 0 represents open and 1 represents closed, determine the expression for output Y.

Calculate the number of 256x1 bit memory chips required to make up 1KB of memory

1. Determine the time constant in an RC network with parallel capacitors.

1. In an LED circuit with a 330Ω resistor and 6V source (LED voltage drop 1.5V), calculate the current through the LED.

1. How many flip-flops are needed for a divide-by-128 counter?

1. In a BJT common-emitter amplifier circuit, the output signal suddenly becomes severely distorted and appears to be "clipped" at the top. The most likely cause is:

1. In a bridge rectifier, one diode shows a higher temperature than others. The most likely cause is:

1. Consider a 3-input NAND gate implemented in CMOS. If one input is floating, and the other two inputs are HIGH, the output is most likely to be:

1. A circuit has these characteristics: Contains only R, L, and voltage sources. It has 5 nodes, 8 branches, and 2 voltage sources. How many independent KVL equations are needed for complete analysis?

You are given with Two 4-Bit Binary Numbers, A = 0011 B = 1010 Assume A as Multiplicand and B as Multiplier, we want to find the Product of these two numbers using 2 different Algorithms. Important assumptions: Assume it takes 10ns for adding two binary numbers of size 5bits each. Multiplication of two bits (And logic) delay is 1ns Time delay for full adder is 3ns and Half adder is 2ns Take inputs as unsigned for Wallace and signed for Booth. Questions: 1) Find the time delay for calculating the product using Wallace multiplication: Assume no parallel processing. Wallace Multiplication (use of half adder and Full adder):

You are given a circuit which contains two right shift registers(A,B each having 3 registers initial values are given in diagram) ,some gates and a full adder , assume this was kept for a long time without a clock pulse and now we give our clock pulse (1st) , what will be the values stored in the shift registers after 3 rd clock raising edge .

Given below are circuits using Nand and Nor gates only , find whether they are +ve unate , non unate or -ve unate : 1) 2) 3) 4) 5) Now take their diagram number’s and calculate p : P = sum(+ve unate) + sum(non unate) – sum(-ve unate) Choose the correct value of p: