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Digital Electronics

Digital Electronics
The binary code of (21.125)10 is

10101.001
10101.01
10100.001
10100.111

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Digital Electronics
A 32 × 10 ROM contains a decoder of size

 10 × 32
 32 × 32
 32 × 10
 5 × 32

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Digital Electronics
A half adder has

 1 input and 1 output
 2 inputs and 2 output
 2 inputs and 1 outputs
 1 input and 2 outputs

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Digital Electronics
A number system with radix 2 is known as

 Hexadecimal
 Decimal
 Octal
 Binary

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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.
 900 mV.
 30 mV.
 90 mV.

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Digital Electronics
The 2s complement of 17 is

 111110.
 101110.
  101111.
 110001.

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