class 10 pre board 2 math basic  question paper 2019-20 

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class 12 math pre board 2 question paper 2019-20 

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class 10 pre board 2 math standard  question paper 2019-20 

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 Class 10 basic math pre board question paper 2019-20

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                            MAGNETIC EFFECT OF CURRENT

                                    IMPORTENT QUESTION

                                              CLASS-10TH

1-Write the principal of electric motor?

2-Write the working and construction of AC and DC generator ?

3-Draw the graphical representation of AC and DC current flow?

4-magnetic field due to current carring conductor -

• • straingth wire 

  • circular coop 

  • so lenoid.

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