Boojho made an electromagnet by winding 50 turns of wire over an iron screw. Paheli also madean electromagnet by winding 100 turns over a similar iron screw. Which electromagnet will attractmore pins?

Boojho made an electromagnet by winding 50 turns of wire over an iron screw. Paheli also madean electromagnet by winding 100 turns over a similar iron screw. Which electromagnet will attractmore pins? Give reason.Question 8.Does the electric current have other effect except heating? Name it.Question 9.Explain the following.(a) Copper and aluminium wires are usually employed for electricity transmission. Explain thereason.(b) Explain how does the resistance of a wire vary with its length.(c) The tungsten is used almost exclusively for filament of electric lamp. Comment.www.n

Which three items below are used to make an electromagnet?

Question 1Tips1 ptsA magnet attract objects made of iron and plastic.Group of answer choicesTrueFalse Flag question: Question 2Question 2Tips1 ptsAn electromagnet uses electricity to attract objects.Group of answer choicesTrueFalse Flag question: Question 3Question 3Tips1 ptsAn electromagnet cannot be turned off and on.Group of answer choicesTrueFalse Flag question: Question 4Question 4Tips1 ptsThe strength of an electromagnet depend on the kind of wire used.Group of answer choicesTrueFalse Flag question: Question 5Question 5Tips1 ptsExamples of device that use electromagnets include telephone, radio, and television.Group of answer choicesTrueFalse

State which of the following modifications to the design would increase the strength. A Use ac instead of de through the electromagnet B Use a longer, thicker core C Join the two poles of the electromagnet with an iron bar placed across them D Increase the number of turns on the electromagnet

Which three items below are used to make an electromagnet? aa battery ba coin ca cork da nail esome thin wire