MCQ
The output of a $2-$input $\text{OR}$ gate is zero only when its :
- ✓Both inputs are $0$.
- BEither input is $1.$
- CBoth inputs are $1.$
- DEither input is $0.$
✓
Answer
Correct option: A.
Both inputs are $0$.
The truth table for $2-$input $\text{OR}$ gate is as shown in the figure. Thus, the output is zero only when both inputs are zero.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
More "M.C.Q (1 Marks)" from Semiconductor Electronic: Material, Devices And Simple Circuits→Semiconductor Electronic: Material, Devices And Simple Circuits — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→
Similar questions
Putting a dielectric substance between two plates of condenser, capacity, potential and potential energy respectively
A tightly wound $100$ turns coil of radius $10 \mathrm{~cm}$ carries a current of $7 \mathrm{~A}$. The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as $4 \pi \times 10^{-7} \mathrm{SI}$ units):
→In a parallel $AC$ circuit with $R_1 = R_1 = R$ and $X_L = X_C = X$ . An $AC$ source is connected across the circuit as shown in figure. The $RMS$ value of potential difference $V_A - V_B$ will be
→The heavier nuclei tend to have larger $\frac{\text{N}}{\text{Z}}$ ratio because:
→Two circular loops of equal radii are placed coaxially at some separation. The first is cut and a battery is inserted in between to drive a current in it. The current $c \sim $anges slightly because of the variation in resistance with temperature. During this period, the two loops:
→A conductor ABOCD moves along its bisector with a velocity of 1 m/s through a perpendicular magnetic field of 1 wb/m$^2$, as shown in fig. If all the four sides are of 1m length each, then the induced emf between points A and D is
→What is magnetic susceptibiliy of super conductor
Light with an energy flux of $20 W / cm ^2$ falls on a non-reflecting surface at normal incidence. If the surface has an area of $30 cm^2$. the total momentum delivered (for complete absorption) during $30$ minutes is:
→Assertion : At a point in space, the electric field points towards north. In the region, surrounding this point the rate of change of potential will be zero along the east and west.
Reason : Electric field due to a charge is the space around the charge
Reason : Electric field due to a charge is the space around the charge
A torch bulb rated as $4.5\, W$, $1.5\, V$ is connected as shown in the figure. The $e.m.f.$ of the cell needed to make the bulb glow at full intensity is ................ $V$
→