hanok made a Electromagnet by winding 50 turns of wire over a iron screw. His mom also made a Electromagnet by winding 100 turns over a similar iron screw . Based on the above paragraph answer the following questions :-
a. What do you mean by electromagnet?
b. What is the effect by winding wire on Iron screw shows?
c. Which Electromagnet will attract more pins ? Give reason.
Answers
Answer:
(a) a soft metal core made into a magnet by the passage of electric current through a coil surrounding it
(b) An electromagnet consists of a long coil of insulated copper wire wound around an iron rod. When the two ends of the coil are connected to a cell, a current passes through the coil and produces a magnetic effect. This magnetic effect magnetises the iron rod. So, the iron rod becomes an electromagnet.
(C) Paheli's electromagnet will attract more pins as it has more number of turns of wire on it and thus a stronger electromagnet.
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Answer:
a)...A electromagnet is a temporary magnet made by passing current in a winded solenoid.
b).. It get magnetized
c)... Electro magnet made by mom will attract more as magnetic properties of a electromagnet depends on the number of turn on material.
more the number of turns more it is magnetic.
Explanation:
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