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A cube of germanium is placed between th...

A cube of germanium is placed between the poles of a magnet and a voltage is applied across opposite faces of the cube as shown in Figure. Magnetic field is directed vertical downward in the plane of the paper :
What effect will occur at the surface of the cube ?

A

The top surface of cube will become negatively charged

B

The front surface of the cube will become positively charged

C

The front surface of the cube will become negatively charged

D

Both top and front surface of cube will become positively charged

Text Solution

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The correct Answer is:
B
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MOTION-SEMI CONDUCTOR AND LOGIC GATES-EXERCISE 2
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  2. In the figure an A.C of rms voltage 200 volt is appled to the circuit ...

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  3. Which of the following statements is wrong ?

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  4. If the following input signal is sent through a P-N junction diode, th...

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  5. The value of current in the following diagram will be –

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  6. In which of the following figure the junction diode is reverse biased ...

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  7. Two identical capacitors A and B are charged to the same potential V a...

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  8. In the circuit shown in figure, Voltage V0 is–

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  9. Determine current I in the configuration –

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  10. In the given circuit V(01) " and " V(02) are -

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  11. A cube of germanium is placed between the poles of a magnet and a volt...

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  12. A full wave rectifier circuit along with the output is shown in the fo...

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  13. In the given figure potential difference between A and B is -

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  14. In figure the current supplied by the battery is -

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  15. In a p-n junction

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  16. The temperature coefficient of resistance of a semiconductor

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  17. A piece of copper and another of germanium are cooled from room temper...

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  18. Consider an n-p-n transistor amplifer in common-emitter configuration....

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  19. In a semiconducting material the mobilities of electrons and holes are...

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