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What is main difference between telephone and cellular phone?

asked Oct 26, 2017 in Physics by shamroz (41.5k points)

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What is photophone?

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What is ceil phone? Describe its working.

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What is fax machine? Describe its working.

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What are radiowaves?

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How light signals are sent through optical fibres?

asked Oct 26, 2017 in Physics by shamroz (41.5k points)

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What is radio tuning circuit? Describe its working.

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How do electrical signal are transmitted through wires?

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What are the essential parts of any communication system? Explain their functions.

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What do you mean by flow of information?

asked Oct 26, 2017 in Physics by shamroz (41.5k points)

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What are the components of information technology? Clearly indicate the function of each component.

asked Oct 26, 2017 in Physics by shamroz (41.5k points)

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What are the means of telecommunication?

asked Oct 26, 2017 in Physics by shamroz (41.5k points)

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What is difference between data and information?

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What do you understand by information and communication technology?

asked Oct 26, 2017 in Physics by shamroz (41.5k points)

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What is meant by information technology and telecommunication?

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

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Show that the circuit given as below acts as AND gate.

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

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Show that the circuit given as below acts as OR gate.

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

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NAND gate is the reciprocal of AND gate. Discuss.

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

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How can you compare the logic operation X = A B with usual operation of multiplication.

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

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In what ways is an oscilloscope a voltmeter?

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

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