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SAI International School
                                                      Class VII
                                                Home Assignment
                                                 Subject: Physics
                                   Ch- Electric current and simple circuit
                                   Subtopic: Magnetic effects of Current

            INSTRUCTIONS:
              For Assertion& Reason question follow the following directions.
            DIRECTION: Each of these questions contains an Assertion followed by Reason. Read them carefully and
            answer the question on the basis of following options. You have to select the one that best describes the two
            statements.
            (a) If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
            (b) If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
            (c) If Assertion is correct but Reason is incorrect.
            (d) If Assertion is incorrect but Reason is correct.
            (e) If Assertion & Reason both are incorrect.



           Any one option is correct.                                                                    Marks
             1.    A magnetic needle placed near a current carrying conductor, deflects due to the           1
                      a)  Heating effects of electric current
                      b)  Magnetic effects of electric current
                      c)  Chemical effects of electric current
                      d)  Both (b) & (c)

             2.    Magnet does not attracts                                                                  1
                     a)  Iron
                     b)  Copper
                     c)  Nickel
                     d)  Cobalt

             3.    The direction of magnetic field around a wire in which current is flowing                 1
                  downward
                     a)  Clockwise concentric circles
                     b)  Anti-clockwise Concentric circles
                     c)  Tangent
                     d)  Diagonal

             4.    Hans Christian Oersted first discovered magnetic effect of current in                     1
                            st
                     a)  21  May,1820
                            st
                     b)  21  March,1820
                            st
                     c)  21  April,1820
                            st
                     d)  21  January ,1820
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