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Electrons are emitted by a hot filament ...

Electrons are emitted by a hot filament and are accelerated by an electric field as shown in figure .The two stops at the left ensure that the electron beam has a uniform cross-section.

A

Linear momentum of electron increases from A to B.

B

The electric current is from right to left

C

The magnitude of the current is same at A and B.

D

The current density is same at A and B.

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The correct Answer is:
A, B, C, D
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RESONANCE ENGLISH-CURRENT ELECTRICITY-Exercise-2 (Part-3)
  1. Electrons are emitted by a hot filament and are accelerated by an elec...

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  2. A current passes through a wire of nonuniform cross-section. Which of ...

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  3. When no current is passed through a conductor,

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  4. The current density in a wire is 10A//cm^(2) and the electric field in...

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  5. A bulb is conneted to an ideal battery of emf 10 V so that the resulti...

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  6. Consider a cylindrical conductor of length L and area of cross - secti...

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  7. N cells each of e.m.f. E & internal resistance r are grouped into sets...

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  8. In the circuit shown in fig. the cell has emf 10V and internal resista...

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  9. In the network shown, points A, B and C have potentials of 70 V, zero ...

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  10. In the circuit shown in figure

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  11. A battery of emf E and internal resistance r is connected across a res...

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  12. Potential difference across the terminal of a non ideal battery is

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  13. A cell of emf epsilon and internal resistance r drives a current i thr...

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  14. In the given figure, E=12V, R(1)=3Omega, R(2)=2Omega" and "r=1Omega. T...

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  15. In a potentiometer wire experiment the emf of a battery in the primary...

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  16. By mistake, voltmeter is connected in series and an ammeter in paralle...

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  17. A microammeter has as resistance of 100 Omega and full scale range of ...

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  18. Two cells of unequal emfs epsi(1)" and "epsi(2), and internal resistan...

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  19. Three voltmeters all having different resistance, are joined as shown....

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  20. In the potentiometer arrangement shown, the driving cell A has emf eps...

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