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Mention any three differences between an...

Mention any three differences between an electric motor and an electric generator.

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`{:("SI. No . ","Electric motor" ,"Generator"),(1.,"Converts electrical energy into mechanical energy." ,"Converts mechanical energy into electrical energy."),(2.,"Based on magnetic effect of electric current." ,"Based on electromagnetic induction"),(3.,"Current is passed through a coil placed in a magnetic field by an external source of electrical energy. Thus , coil starts rotating." ,"A coil is rotated in a magnetic field by an external arrangement . Due to this, an electric current is induced in the coil."):}`
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ZEN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT -Additional question section (Short answer [SA] type 2 questions)
  1. Explain the mechanical effect produced by an electric current.

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  2. State the law that helps to determine the direction of magnetic field ...

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  3. State Fleming's left hand rule or motor rule.

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  4. Name the rule which gives the direction of induced current in a conduc...

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  5. On what factors do the magnetic field produced by a straight current-...

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  6. What change is observed in the deflection of the compass needle placed...

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  7. State the clock rule to determine the polarity of any face of a circul...

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  8. What is an electromagnet ? Draw a circuit diagram to show how a soft-...

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  9. a] What is a solenoid ? Draw the patterns of magnetic field lines of ...

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  10. Find the direction of magnetic field due to a current-carrying circula...

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  11. The magnetic field produced by a coil of n turns, at its centre, is n ...

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  12. How does the strength of the magnetic field at the centre of circular...

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  13. What does the divergence of magnetic field lines near the end of a cur...

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  14. List any three differences between an alternating current and a direc...

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  15. Mention any three differences between an electric motor and an electri...

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  16. List two distinguishing features between overloading and short circui...

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  17. What is an electric fuse ? What is its role in the electric circuits ...

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  18. List two characteristics of the material used in a fuse wire. Name th...

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  19. What are the abvantages of connecting different electrical appliances ...

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  20. State the significance of the following devices in domestic circuits :...

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