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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 galvanometer and ammeter?

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What is difference between electronic current and conventional current?

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

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What do you mean by conventional current? Explain.

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

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Define and explain the term electric current

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

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1 answer 140 views

Explain why, a glass rod can be charged by rubbing when held by hand.

asked Oct 23, 2017 in Physics by sonia (36.5k 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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1 answer 403 views

Perhaps you have seen a gasoline truck trailing a metal chain beneath it. What purpose does the chain serve?

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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1 answer 168 views

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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Each capacitor in parallel combination has equal potential difference between its two plates. Justify the statement.

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

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1 answer 337 views

Does each capacitor carry equal charge in series combination? Explain.

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In what direction will a positively charged particle move in an electric field?

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

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How much negative charge has been removed from a positive charged electroscope, if it has a charge of 7.5x1 T11C?

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

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1 answer 621 views

An electrified rod attracts pieces of paper. After a while these pieces fly away! Why?

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

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1 answer 122 views

A'capacitor is a energy storing device. Discuss.

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

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What is difference between gravitational potential and electric potential?

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1 answer 169 views

What is difference between electric potential and potential difference?

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Show that potential difference can be described as energy transfer per unit charge between the two points.

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

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What is meant by electron volt?

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

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