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What is an electromagnet? Upon what fact...

What is an electromagnet? Upon what factors its strength depends?

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MBD-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXAMPLE
  1. Given magnetic field due to solenoid on what factors the strength of t...

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  2. What is solenoid? How does a solenoid behave like a bar magnet?

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  3. What is an electromagnet? Upon what factors its strength depends?

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  4. Explain principal,construction and working of D.C.generator.

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  5. Arrange an activity to show that current is produced due to change in ...

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  6. What are essential precautions to be used while using electricity?

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  7. What are magnetic filed lines? How can the magnetic lines of force due...

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  8. How will you prove that current flowing through a copper wire produces...

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  9. What do you understand by magnetic effect of current? To understand th...

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  10. Write important properties of magnetic lines of force?

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  11. How will you represent diagrammatically uniform and non-uniform magnet...

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  12. In the given figure what are the lines shown around the magnet called?...

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  13. What is Maxwell's right hand thumb rule?

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  14. Which rule is shown in the figure?Define the rule in which device this...

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  15. In the figure which law is shown?lablel 1 and 2 in relation to the law...

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  16. Name the law shown in the figure lable 1 and 2 according to this law.

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  17. In the alongside figure a straight conductor B is carrying current in ...

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  18. In the alongside figure a straight conductor B is carrying current in ...

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  19. What is electro-magnetic induction?

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  20. List some such electric applicances in which electric motor is used.

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