Question

A student found a mixture that contains pieces of paper and some pins. He wants to
separate the pins from the mixture without handpicking them. Which of these procedures would help him to separate the pins from pieces of paper?
a) Build a magnet using electricity.
b) Place an electric bulb in the mixture.
c) Build an object that uses electricity to heat.
d) Place wires carrying electricity into the mixture.

Answer 1

Answer:

a) Build a magnet using electricity. since the pins are made of iron, it gets attracted to the magnet

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Answer 2

Answer:

Step-by-step explanation:

Option - a is correct.

When you get place the magnet infront of the mixture, the pins get easily attracted by the magnet since the metal is a good conductor ,whereas paper donot get attracted.

Since magnectic fields are produced from electric fields ,you need to place the magnet using electricity.