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Digital Electronics

Digital Electronics
Latches are ________ circuits.

 edge triggered
 level triggered
 count triggered
 pulse triggered

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Digital Electronics
How many bits are required to store one BCD digit ?

 3
 2
 1
 4

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Digital Electronics
A graphical representation of a products in a truth table is called as

 Graphing
 Mapping
 T-Map
 K-Map

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Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 2
 1
 3
 4

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Digital Electronics
Dual slope ADC has R = 1 KΩ and C = 0.22 nanofarad has charging and discharge times for some voltage is 9 ns and 3 ns respectively. The reference Voltage is 2.2 V. What is the peak voltage reached by triangular wave during charging?

 300 mV.
 30 mV.
 900 mV.
 90 mV.

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Digital Electronics
In Boolean algebra, the bar sign (-) indicates ___________.

None of these
NOT operation
OR operation
AND operation

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