MCQ
Which represents $NAND$ gate a
- ✓
- B
- C
- D
✓
Answer
Correct option: A.
a
(a)$AND + NOT ⇒ NAND$
(a)$AND + NOT ⇒ NAND$
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
Similar questions
Three resistors having resistances $\mathrm{r}_{1}, \mathrm{r}_{2}$ and $\mathrm{r}_{3}$ are connected as shown in the given circuit. The ratio $\frac{i_{3}}{i_{1}}$ of currents in terms of resistances used in the circuit is :
→The phenomenon of sound propagation in air is
An increases in pressure required to decreases the $200$ litres volume of a liquid by $0.004\%$ in container is .......... $kPa$ (Bulk modulus of the liquid $= 2100\, MPa$)
→The heating coils rating at $220\, volt$ and producing $50\, cal/sec$ heat are available with the resistances $55\,\Omega $ , $110\,\Omega$ , $220\,\Omega $ and $440\,\Omega $. The heater of maximum power will be of............. $\Omega$
→The circuit shown in the figure contains an inductor $L$, a capacitor $C_0$, a resistor $R_0$ and an ideal battery. The circuit also contains two keys $K_1$ and $K_2$. Initially, both the keys are open and there is no charge on the capacitor. At an instant, key $K_1$ is closed and immediately after this the current in $R_0$ is found to be $l_1$. After a long time, the current attains a steady state value $I_2$. Thereafter, $K_2$ is closed and simultaneously $K_1$ is opened and the voltage across $C_0$ oscillates with amplitude $V_0$ and angular frequency $\omega_0$.
→Match the quantities mentioned in $List-I$ with their values in $List-II$ and choose the correct option.
| $List-I$ | $List-II$ |
| ($P$) The value of $l_1$ in Ampere is | ($1$) $0$ |
| ($Q$) The value of $I_2$ in Ampere is | ($2$) $2$ |
| ($R$) The value of $\omega_0$ in kilo-radians/s is | ($3$) $4$ |
| ($S$) The value of $V_0$ in Volt is | ($4$) $20$ |
| ($5$) $200$ |
A uniform wooden stick of mass $1.6 \mathrm{~kg}$ and length $l$ rests in an inclined manner on a smooth, vertical wall of height $h( < l)$ such that a small portion of the stick extends beyond the wall. The reaction force of the wall on the stick is perpendicular to the stick. The stick makes an angle of $30^{\circ}$ with the wall and the bottom of the stick is on a rough focr. The reaction of the wall on the stick is equal in magnitude to the reaction of the floor on the st $ck$. The ratio $h / l$ and the frictional force $f$ at the bottom of the stick are $\left(g=10 \mathrm{~m} \mathrm{~s}^{-2}\right)$
→In damped oscillation graph between velocity and position will be
A Young's double slit interference arrangement with slits $S _1$ and $S_2$ is immersed in water (refractive index $=4 / 3$ ) as shown in the figure. The positions of maxima on the surface of water are given by $x^2=p^2 m^2 \lambda^2-d^2$, where $\lambda$ is the wavelength of light in air (refractive index $=1$ ), $2 d$ is the separation between the slits and $m$ is an integer. The value of $p$ is
→The magnetic moment $(\mu )$ of a revolving electron around the nucleus varies with principal quantum number $n$ as
→A fish and a bird are moving as shown in figure. Find the velocity of bird as observed by fish.
