Physics-
General
Easy
Question
The diagram of a logic circuit is given below. The output F of the circuit is represented by
The correct answer is:
Output of upper OR gate = W + X
Output of lower OR gate = W + Y
Net output F = (W + X) (W + Y)
= WW + WY + XW + XY (Since WW = W)
= W(1 + Y) + XW + XY (Since 1 + Y= 1)
= W + XW + XY = W (1 + X) + XY = W + XY
Related Questions to study
physics-
The shows two NAND gates followed by a NOR gate. The system is equivalent to the following logic gate
The shows two NAND gates followed by a NOR gate. The system is equivalent to the following logic gate
physics-General
physics-
The combination of gates shown below produces
The combination of gates shown below produces
physics-General
physics-
Figure gives a system of logic gates. From the study of truth table it can be found that to produce a high output (1) at R, we must have
Figure gives a system of logic gates. From the study of truth table it can be found that to produce a high output (1) at R, we must have
physics-General
physics-
The following configuration of gate is equivalent to
The following configuration of gate is equivalent to
physics-General
physics-
For the transistor circuit shown below, if , voltage drop between emitter and base is 0.7 V then value of will be
For the transistor circuit shown below, if , voltage drop between emitter and base is 0.7 V then value of will be
physics-General
physics-
In the following circuit find and
In the following circuit find and
physics-General
physics-
In the circuit shown in figure the maximum output voltage 
is
In the circuit shown in figure the maximum output voltage is
physics-General
physics-
Ge and Si diodes conduct at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the valve of V0 changes by
Ge and Si diodes conduct at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the valve of V0 changes by
physics-General
physics-
A diode is connected to 220 V (rms) ac in series with a capacitor as shown in figure. The voltage across the capacitor is
A diode is connected to 220 V (rms) ac in series with a capacitor as shown in figure. The voltage across the capacitor is
physics-General
physics-
In which of the following circuit is the current maximum just after the switch S is closed
In which of the following circuit is the current maximum just after the switch S is closed
physics-General
maths-
Range of function f(x) = 
is given by
Range of function f(x) = is given by
maths-General
physics-
Find VAB
Find VAB
physics-General
physics-
The circuit shown in following figure contains two diode 
and each with a forward resistance of 50 ohms and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 ohm resistance (in amperes) is
The circuit shown in following figure contains two diode and each with a forward resistance of 50 ohms and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 ohm resistance (in amperes) is
physics-General
physics-
In the following circuits PN-junction diodes D1, D2 and D3 are ideal for the following potential of A and B, the correct increasing order of resistance between A and B will be
i) – 10 V, – 5V (ii) – 5V, – 10 V
iii) – 4V, – 12V
In the following circuits PN-junction diodes D1, D2 and D3 are ideal for the following potential of A and B, the correct increasing order of resistance between A and B will be
i) – 10 V, – 5V (ii) – 5V, – 10 V
iii) – 4V, – 12V
physics-General
physics-
In the circuit given below, V(t) is the sinusoidal voltage source, voltage drop 
across the resistance R is
In the circuit given below, V(t) is the sinusoidal voltage source, voltage drop across the resistance R is
physics-General
