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Digital Electronics

Digital Electronics
The XS-3 code is a

 error-correcting code
 self-complementing code
 cyclic code
 weighted code

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Digital Electronics
The number of cells in a 6 variable K-map is

 64
 6
 36
 12

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Digital Electronics
Which of the following is 1’s complement representation of -34?

 01011101
 10100010
 11011101
 11011110

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Digital Electronics
While using a frequency counter for measuring frequency, two modes of measurement are possible. 1. Period time 2. Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4Mhz the crossover frequency is given by

 8 Mhz
 1 Khz
 2 Khz
 2 Mhz

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Digital Electronics
The devices commonly used for making digital circuits are

 semiconductor devices
 relays
 mechanical switches
 contact switches

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Digital Electronics
OR-AND realization of a combinational circuit is equivalent to

 NAND-NOR realization
 NOR-NOR realization
 NAND-NAND realization
 NOR-NAND realization

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