Concepts of electromagnets — task. Physics CBSE Live product, Class 8 (2026-27).

Select the best answer:

Which factor increases the strength of an electromagnet?

Increasing the number of cells in the circuit to decrease the current flowing through the coil.
Decreasing the number of turns of the coil to reduce resistance
Switching the current off intermittently
Increasing the number of cells in the circuit to increase the current flowing through the coil

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