MCQ
The output of a 2-input OR gate is zero only when its:
  • A
    Both inputs are 0.
  • B
    Either input is 1.
  • C
    Both inputs are 1.
  • D
    Either input is 0.

Answer

  1. Both inputs are 0.

Explanation:

The truth table for 2-input 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.

Start Generating Free

Similar questions

A point source of light is placed in front of a plane mirror:

If a ray of light is incident on a plane mirror at an angle of $30^{\circ}$, then deviation produced by a plane mirror is __________ .

An electric bulb illuminates a plane surface. The intensity of illumination on the surface at a point 2m away from the bulb is 5  phot (lumen/cm2). The line joining the bulb to the point makes an angle of 60o with the normal to the surface. The intensity of the bulb in candela is

(a) 40 

(b) 40

(c) 20       

(d) 40  

Which of the following substance is most suitable to make core of transformer?
Carbon, silicon and germanium have four valence electrons each. At room temperature the appropriate statement is:
Which of the following statement is not correct about two parallel conductors carrying equal currents in the same direction?

A wave can transmit ...... from one place to another

(a) Energy

(b) Amplitude

(c) Wavelength

(d) Matter

Voltage across each elements of a series LCR circuit are given by VL​ = 60V, VC ​= 20V, VR ​= 30V Find out source voltage.

A point charge of 40 stat coulomb is placed 2 cm in front of an earthed metallic plane plate of large size. Then the force of attraction on the point charge is

(a) 100 dynes

(b) 160 dynes

(c) 1600 dynes

(d) 400 dynes

A short bar magnet placed with its axis at $30^{\circ}$ with a uniform external magnetic field of 0.25 T experiences a torque of magnitude equal to $4.5 \times 10^{-2} J$. The magnitude of magnetic moment of the magnet is __________ $JT^{-1}$