Recent questions in Physics

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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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1 answer 232 views

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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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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1 answer 191 views

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 251 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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1 answer 259 views

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 383 views

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

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

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1 answer 139 views

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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1 answer 289 views

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 698 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 188 views

A'capacitor is a energy storing device. Discuss.

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

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1 answer 261 views

What is difference between gravitational potential and electric potential?

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

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1 answer 244 views

What is difference between electric potential and potential difference?

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

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1 answer 3.0k views

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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1 answer 211 views

What is meant by electron volt?

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

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1 answer 265 views

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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1 answer 196 views

How do the electric field lines for an isolated positive and negative charge are drawn?

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

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1 answer 204 views

How are electric lines of force related to the electric field intensity?

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

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1 answer 234 views

What is meant by electric field lines or electric lines of force. How can we draw the electric field lines.

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

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1 answer 182 views

What is meant by point charges?

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

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