Discover, design and debate (Page 61) Make coils of turns 25, 50, 75 and 100 Connect them to the same cell one by one Class 8
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Discover, design and debate (Page 61) Make coils of turns 25, 50, 75 and 100 Connect them to the same cell one by one Class 8
Make coils of turns 25, 50, 75 and 100. Connect them to the same cell one by one. Note the deflection in a magnetic compass placed in the same position in all the cases. Report your observations. Draw conclusion of the effect of number of turns of the coil on the strength of the electromagnet. Class 8
Answer:
Activity: Coils are made with 25,50,75 and 100 turns and each is connected to the same electric cell. A magnetic compass is placed near the end of each coil, and the deflection of the compass needle is observed.
Observations:
Conclusion: As the number of turns in the coil increases, the strength of the electromagnet also increases. This is seen because the compass needle deflects more each time the number of turns increases.