Recent questions in Physics

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What do you understand by analogue and digital quantities?

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What is electron gun? Describe the process of thermionic emission.

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Considering an oscilloscope, explain:

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Name some uses of Oscilloscope.

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What is cathode-ray oscilloscope? Explain the working of its different parts.?

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What happens when a narrow beam of electrons is passed through a uniform magnetic field?

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What is the function of electromagnetism in television?

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What happens when a narrow beam of electrons is passed through a uniform electric field? What is its reason?

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What do you understand by thermionic emission?

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Define electronics.

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Does a fuse in a circuit control, the potential difference or the current?

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

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It is impracticable to connect ah electric bulb and an electric heater in series. Why?

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A certain flash-light can use a 10 ohm bulb or a 5 ohm bulb.

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From your experience in watching cars on the roads at night,

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How many watt-hours are there in 1000 joules?

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

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In order to measure voltage in a circuit, voltmeter is always connected in parallel. Discuss.

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In order to measure current in a circuit, why ammeter is always connected in series?

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Two points on an object are at different electric potential. Does charge necessarily flow between them?

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Can current flow in a circuit without potential difference?

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What is the difference between a cell and a battery?

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