Recent questions without a selected answer

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1 answer 792 views

Give three reasons to support the evidence that cathode-rays are negatively charged electrons.

asked Oct 26, 2017 in Physics by sonia (36.5k points)

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1 answer 712 views

Name two factors which can enhance thermionic emission.

asked Oct 26, 2017 in Physics by sonia (36.5k points)

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1 answer 116 views

What do you mean by bit, byte and digitization?

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 143 views

What is a truth table?

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 62 views

What are Boolean variables and logic operations?

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 127 views

What are logic functions or logical operations?

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 60 views

What is Boolean Algebra?

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 151 views

Describe some uses of ionic gates.

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 74 views

What is NOR gate? Give its symbol and truth table.

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 94 views

What is NAND gate? Give its symbol and truth table.

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 126 views

What is NOT gate? Give its symbol and truth table.

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 104 views

What is OR gate? Give its symbol and truth tube.

asked Oct 25, 2017 in Physics by sonia (36.5k points)

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1 answer 68 views

What is AND gate? Give its symbol and truth table.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 73 views

What is a NOT operation? Write down its truth table.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 39 views

What is an OR operation? Write down its truth table.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 68 views

What is an AND operation? Write down its truth table.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 88 views

What do you mean by binary variables?

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 1.6k views

Write down some benefits of using digital electronics over analogue electronics.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 158 views

What is a digital signal? Explain.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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1 answer 290 views

What is an analogue signal? Explain.

asked Oct 25, 2017 in Physics by shamroz (41.5k points)

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