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Imagine that you are sitting in a chamb...

Imagine that you are sitting in a chamber with you back to one wall. An electron beam , moving horizontlly from back wall towards the front wall , is deflected by a stong magnetic field to your right side.
What is the direction of magnetic field ?

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For reference , see figure (a) and (b) .
The direction of the conventional current is opposite to the direction of motion of the electron .
Applying Fleming.s left - hand rule , we find that when the middle finger points in the direction of the current and the thumb points in the direction of the force , the forefinger points downward giving the direction of the magnetic field .
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KUMAR PRAKASHAN-MAGNETIC EFFECTS OF ELECTRIC CURRENT -TEXTUAL EXERCISE
  1. The phenomenon of electromagnetic induction is…….

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  2. The device used for producing electric current is called a……..

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  3. The essential difference between and AC generator and a DC generato...

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  4. At the time of short circuit , the current in the circuit……

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  5. State whether the following statement are true or false : An elect...

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  6. State whether the following statement are true or false : An elect...

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  7. State whether the following statement are true or false : The mag...

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  8. State whether the following statement are true or false : The wi...

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  9. List two methods of producing magnetic fields .

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  10. How does a solenoid behave like a magnet ? Can you determine the no...

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  11. When is the force experienced by a current - carrying conductor pla...

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  12. Imagine that you are sitting in a chamber with you back to one wall. ...

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  13. Draw a labelled diagram of an electric motor . Explain its princple ...

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  14. Name some devices in which electric motors are used .

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  15. A coil of insulated copper wire is conncted to a galvnometer . What...

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  16. Two circular coil A and B are placed close to each other . If the c...

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  17. State the rule to determine the direction of a (i) magnetic field pr...

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  18. Explain the underlying principle and working of an electric genera...

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  19. When does an electric short circuit occur ?

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  20. What is the function of an earth wire ? Why is it necessary to earth...

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