Please answer the followings question and get 15 points
Answers
Vicky is investigating electromagnets. She winds a coil of Insulated copper wire around a rod of pure Iron. She then connects the wire to the power supply. She counts how many paperclips the electromagnet will pick up with different number of turns in the coil
power supply • •
ISIONMIO
coil of insulated copper wire
pure iron rod
(a) Her results are shown below:
Number of turns in the coil Number of paperclips picked up 10 1 20 2 30 3 40 4 50 5 60 6
(1) Describe the relationship between the number of turns in the coil and the strength of the electromagnet. (2) Give one other way in which she could Increase the strength of the electromagnet (3) Vicky turns the power supply off. What would happen to the paperclip(s)? Explain your answer. (4) Vicky repeats this with a steel rod instead of the iron rod. Explain why the paperclips remain attached.
Refer the attached pdf foe answer
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