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Digital Electronics

Digital Electronics
What is the gray code for the binary 101011?

 110101
 101011
 111110
 011111

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Digital Electronics
A combinational circuit can be designed using only

 OR gates
 OR and X-NOR gates
 AND gates
 NOR gates

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Digital Electronics
A D-flip-flop is said to be transparent when

 the output follow input
 the output follows clock
 the output is HIGH
 the output is LOW

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Digital Electronics
The implicants which will definitely occur in the final expression are called

 redundent prime implicants
 essential prime implicants
 selective prime implicants
 prime implicants

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Digital Electronics
A bubbled AND gate is equivalent to a

 OR gate
 NAND gate
 NOR gate
 X-OR gate

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 16 × 16
 64 × 4
 256 × 1
 32 × 8

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