CBSE Class 7 Answered
If we want to increse the strength of an electromagnet, what factors have to be changed or altered? Mention few uses of electromagnet in our daily life.
Asked by Shreeya Nemani | 25 Aug, 2018, 02:54: PM
Expert Answer
Electromagnet is made by wounding many number of turns of copper coil and passing current through it.
Strength of magnet can be increased (1) by winding more number of turns, (2) by increasing the current value
Answered by Thiyagarajan K | 27 Aug, 2018, 04:08: PM
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