P,Q and R represent switches in on position and P',Q' and R' represent switches in off position. Construct a switching circuit representing the polynomial `PR+Q(Q'+R)(P-: QR)` . Using Boolean Algebra, simplify the polynomial expression and construct the simplified circuit

A, B and C represent switches in 'on' position and A', B' and C' represent them in 'off' position. Construct a switching circuit representing the polynomial ABC + AB'C + A'B'C. Using Boolean Algebra, prove that the given polynomial can be simplified to C (A + B'). Construct an equivalent switching circuit.

Write the Boolean function coresponding to the switching circuit given below: A, B and C represent switches in 'on' position and A', B' and C' represent them in 'off' position. Using Boolean algebra, simplify the function and construct an equivalent switching circuit.

The Boolean expression P+bar(P)Q , where P and Q are the inputs of the logic circuit, represents

Identify P, Q, R in the composition of green house gases represented below

In electrocardiography P-Q interval represents :

If p,q and r are simple propositions such that (p^^q)^^(q^^r) is true, then

Construst a circuit for the statements ( p ^^ q ^^ r) vv [( ~ p ) ^^ ( ~ q)]

In the circuit shown in the figure initialy the switch in position 1 for a long time, then suddenly at t=0 the switch is shifted to position 2. It is required that a constant current should flow in the circuit, the value of resistance R in the circuit

Write vec P Q+ vec R P+ vec Q R in the simplified form.

The contra positive of ( ~ p ^^ q) to ~ r is