Question
Which represents NAND gate
|
(a)
|
(b)
|
(c)
|
(d)
|
✓
Answer
(a)
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
The permanent magnetic moment of the atoms of a material is not zero. The material:
- Must be paramagnetic.
- Must be diamagnetic.
- Must be ferromagnetic.
- May be paramagnetic.
If 
is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled
|
(a) |
(b) |
(c) 2 |
(d) 4 |
The temperature of cold junction and neutral temperature of a thermocouple are 15℃ and 280℃ respectively. The temperature of inversion is
|
(a) 295℃ |
(b) 265℃ |
(c) 545℃ |
(d) 575℃ |
The decay constant of radium is 4.28 
per year. Its half life will be
|
(a) 2000 years |
(b) 1240 years |
(c) 63 years |
(d) 1620 years |
A long solenoid of length L has a mean diameter D. It has n layers of windings of N turns each. If it carries a current ‘i’ the magnetic field at its centre will be
|
(a) Proportional to D |
(b) Inversely proportional to D |
|
(c) Independent of D |
(d) Proportional to L |
A very long bar magnet is placed with its north pole coinciding with the centre of a circular loop carrying as electric current i. The magnetic field due to the magnet at a point on the periphery of the wire is B. The radius of the loop is a. The force on the wire is:
In the figure given the value of X resistance will be, when the p.d. between B and D is zero
|
(a) 4 ohm |
(b) 6 ohm |
(c) 8 ohm |
(d) 9 ohm |
Among the following _____ has the highest retentivity.
The structure of solid crystals is investigated by using
| (a) Cosmic rays | (b) X-rays | (c) Infrared radiations | (d) γ - rays |
The ratio of the wavelengths for 2 → 1 transition in Li++, He+ and H is
|
(a) 1 : 2 : 3 |
(b) 1 : 4 : 9 |
(c) 4 : 9 : 36 |
(d) 3 : 2 : 1 |