. Three cotton bags contain coils of different materials
Three cotton bags contain coils of different
materials. To find the bag that contains iron coil without touching, we need a/an
(a) plastic rod.
(b) bar magnet.
(c) glass rod.
(d) iron bar.
Best Answer
(b)
Explanation: A bar magnet is an artificial magnet, which attracts materials having magnetic properties like iron, nickel and cobalt.
Explanation: A bar magnet is an artificial magnet, which attracts materials having magnetic properties like iron, nickel and cobalt.
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