English

The Output of Nor Gate is High, When

Advertisements
Advertisements

Question

The output of NOR gate is high, when _______.

Options

  • all inputs are high

  • all inputs are low

  • only one of its inputs is high

  • only one of its inputs is low

MCQ
Advertisements

Solution

all inputs are low

shaalaa.com
  Is there an error in this question or solution?
2014-2015 (October)

APPEARS IN

RELATED QUESTIONS

Write the truth table for the combination of the gates shown. Name the gates used.


Identify the logic gates marked 'P' and 'Q' in the given circuit. Write the truth table for the combination.


The logic gate which produces LOW output when one of the input is HIGH and produces
HIGH output only when all of its inputs are LOW is called _______.

(A) AND gate

(B) OR gate

(C) NOR gate

(D) NAND gate


You are given the two circuits as shown in following figure. Show that circuit

  1. acts as OR gate while the circuit
  2. acts as AND gate.

(a)

(b)


Write the truth table for circuit given in figure below consisting of NOR gates and identify the logic operation (OR, AND, NOT) which this circuit is performing.

(Hint: A = 0, B = 1 then A and B inputs of second NOR gate will be 0 and hence Y=1. Similarly work out the values of Y for other combinations of A and B. Compare with the truth table of OR, AND, NOT gates and find the correct one.)


Draw the schematic symbols for AND, OR, NOT and NAND gate


You are given a circuit below. Write its truth table. Hence, identify the logic operation carried out by this circuit. Draw the logic symbol of the gate it corresponds to.


Identify the logic gate represented by the circuit as shown and write its truth table.


The following figure shows the input waveforms (A, B) and the output waveform (Y) of a gate. Identify the gate, write its truth table and draw its logic symbol.


The output of an OR gate is connected to both the inputs of a NAND gate Draw the logic circuit of this combinaion of getes and write its truth table.


An AND gate can be prepared by repetitive use of
(a) NOT gate
(b) OR gate
(c) NAND gate
(d) NOR gate.


Let  \[X = A \overline{ BC} + B\overline{ CA} + C\overline{AB } .\]   Evaluate X for A = 1, B = 0, C = 1. 


The amplification factor of a triode operating in the linear region depends strongly on ____________ .


Why are NOR gates considered as universal gates?


Show the variation of voltage with time, for a digital signal.


With the help of a diagram, show how you can use several NAND gates to obtain an OR gate.

Useful Constants and Relations :

1. Speed of Light in Vacuum      (c) = 3.00 x 108 m/s
2. Charge of a proton (e) = 1.60 x 10-19C
3. Planck's Constant (h) = 6.6 x 10-34 Js
4. Permeability of vacuum (μ0) = 4π x 10-7 Hm-1
5. Electron Volt (1eV ) = 1.6 x 10 
6. Unified Atomic Mass Unit (1u) = 931 MeV
  (π) = 3.14
  ( ln 2 ) = 0.693

You are given circuit as shown in the figure, which consists of NAND gate. Identify the logic operation carried out by the two. Write the truth table. Identify the gates equivalent to the tow circuits.


NAND and NOR gates are called universal gates primarily because they ______.


A radar is sending out pules of 1 micro second duration at interval of 100 micro-second. The range of the radar is


The Boolean expression for NAND gate is


The output of 2-input or gate is zero only when its


The truth table for the following logic circuit is:


Two car garages have a common gate which needs to open automatically when a car enters either of the garages or cars enter both. Devise a circuit that resembles this situation using diodes for this situation.


How would you set up a circuit to obtain NOT gate using a transistor?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×