Explain what an electromagnet is, how to increase its strength, list two uses, and state two differences from…

Question

Explain what an electromagnet is, how to increase its strength, list two uses, and state two differences from a permanent magnet.

ScanSolve AI Tutor · Accepted Answer

Step 1: Complete Question 3(b)(i). (b) (i) An electromagnet is a temporary magnet created when an electric current flows through a coil of wire, typically wrapped around a soft iron core. Step 2: Answer Question 3(b)(ii). (ii) Two ways to increase the strength of an electromagnet are: Increase the number of turns in the coil of wire. Increase the current flowing through the coil. Step 3: Answer Question 3(c). (c) Two uses of an electromagnet are: They are used in electric bells to strike the gong. They are used in cranes to lift and move heavy magnetic materials like scrap iron. Step 4: Answer Question 3(d). (d) Two differences between an electromagnet and a permanent magnet are: An electromagnet is a temporary magnet whose magnetism can be turned on and off, while a permanent magnet retains its magnetism indefinitely. The strength of an electromagnet can be varied by changing the current or number of turns, whereas the strength of a permanent magnet is fixed.

Explain what an electromagnet is, how to increase its strength, list two uses, and state two differences from a permanent magnet.

Step-by-step solution

Part b· 2 steps

Answer Question 3(b)(ii).

Answer Question 3(c).

Part c· 1 step

Answer Question 3(d).

Part d

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