Sakshi made a model of electric bell. She connected the coil in the circuit and switched it ON. However, the magnetism produced in the coil was not strong enough. When she made some changes in the coil the circuit started working properly. She also found out the other ways of producing a strong magnetism. .
a) What changes did Sakshi make in the coil? b) What do you mean by the magnetic effect of electric current? c) What other ways did Sakshi found for increasing the strength of magnet? d) State the rule to determine the direction of a force experienced by the current carrying straight-wire placed in the magnetic field which is perpendicular to it?
Answers
Answer:
a) What changes did Sakshi make in the coil?
---> She would have increased the potential difference.
b) What do you mean by the magnetic effect of electric current?
---> The magnetic effect of electric current is known as electromagnetic effect. It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.
c) What other ways did Sakshi found for increasing the strength of magnet?
---> She would have decreased the area or length of copper wire.
d) State the rule to determine the direction of a force experienced by the current carrying straight-wire placed in the magnetic field which is perpendicular to it?
--> Rule used is-(i)Right hand thumb rule'. (ii) Fleming's left hand rule is used to find the direction of force experienced by a current carrying straight conductor, when placed in a magnetic field, which is perpendicular to it.
Explanation:
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