Recent questions tagged energy

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A light bulb is switched on for 40s. If the electrical energy consumed by the bulb during this time is 2400 J,

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

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1 answer 3.9k views

What is kilowatt-hour? How energy in kilowatt-hour can be obtained?

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

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How is energy dissipated in a resistance? Explain.

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

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1 answer 187 views

A'capacitor is a energy storing device. Discuss.

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

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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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1 answer 218 views

Give some examples in which energy is transferred from one place to another through matter.

asked Oct 16, 2017 in Physics by sonia (36.5k points)

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Waves are the means of energy transfer without transfer of matter.

asked Oct 16, 2017 in Physics by sonia (36.5k points)

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1 answer 261 views

How many methods are there for the transfer of energy from one place to another?

asked Oct 16, 2017 in Physics by sonia (36.5k points)

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1 answer 257 views

How the flow of energy, is different from that of materials?

asked Sep 13, 2017 in Biology by shamroz (41.5k points)

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1 answer 243 views

What is the source of energy for muscle contraction and why do muscles contain many mitochondria?

asked Sep 4, 2017 in Biology by shamroz (41.5k points)

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1 answer 200 views

In which form Organisms need energy?

asked Aug 31, 2017 in Biology by shamroz (41.5k points)

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1 answer 249 views

In which form Organisms need energy?

asked Aug 21, 2017 in Biology by admin (1.5k points)

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