Question

In Boolean algebra, X = A.B implies that

Solution

Correct option is

X exists when both A and exist

In Boolean algebra the AND operator is denoted by the symbol (.), i.e., 

                   

which is to be read as ‘X equals A AND B’. Thus X exists when both Aand B exist and not when only A or only B exists.

SIMILAR QUESTIONS

Q1

The current gain for common-emitter amplifier is 59. If the emitter-current is 6.0 mA, find (i) base-current, and (ii) collector-current.

Q2

Calculate the current gain  of a transistor if the current-gain  is 0.98.

Q3

In a silicon transistor, a change of 7.98 mA in the emitter-current produces a change of 7.8 mA in the collector-current. Find the required change in the base current to produce an equivalent change in the collector current. 

Q4

A common-emitter transistor amplifier has a current gain of 50. The collector resistance is  and the input resistance is , calculate the output voltage if input voltage is 0.01 V. 

Q5

The internal resistance of a triode value is  and the amplification factor is 15. What is the potential (at constant-potential) is required to increase the plate current from 6 mA to 9 mA?

Q6

Which logic gets is represented by the following combination of logic gets?

                                         

Q7

The Boolean equation for the circuit given in the figure is :

                                                      

Q8

The given symbol represents :            

                                                                   

Q9

Two voltage signals A and B. Which of the following statements is true?

                                       

Q10

What is the Boolean expression for the gate circuit .