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Why colour of bromine water discharges on addition of ethene in it?

asked Sep 21, 2017 in Chemistry by shamroz (41.5k points)

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If a high-voltage power line fell across your car while you were in the car, why should you not come out of the car?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

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Is the presence of charge necessary for the existence of electrostatic potential?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

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Define electronics.

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

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How would you define potential difference between two points? Define its unit.

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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What do you mean by electric power? Define its unit

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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Define the terms resolving power and magnifying power or angular magnification.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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What is voltmeter? How potential difference across a circuit can be measured?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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What do you mean by binary variables?

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

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What is meant by potential difference and electromotive force (emf)?

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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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 139 views

How is energy dissipated in a resistance? Explain.

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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What do you understand by thermionic emission?

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

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Define the term time period and frequency.

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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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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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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State and explain Joule's law. ,

asked Oct 23, 2017 in Physics by shamroz (41.5k points)

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What is the function of electromagnetism in television?

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

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How does short circuit occur and how can it be avoided?< .

asked Oct 23, 2017 in Physics by sonia (36.5k points)

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Rubber tyres get charged from friction with the road; What is the polarity of the charge?

asked Oct 23, 2017 in Physics by sonia (36.5k points)

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