Rohan made a model of electric bulb .he connected the coil and the circuit and switched it on .how were the magnetism produced in the coil was not a strong enough .when he made some changes in the coil the circuit started working properly .he also found out of the ways of producing
the strong magnetism
Q.1 what changes did Rohan make in the coil?
Q.2 what do you mean by magnetic effect of electric current?
Q.3 what are the way did Rohan found for increasing the strength of the magnet?
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Answer:
magnetism will produce in a close loop ....
the strongest is near the coil....
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