Same chapter1 markDifficulty: Easy
The direction of the force on a current-carrying conductor in a magnetic field is found by:
Electromagnetism
2 marksDifficulty: Easy
State two ways in which the strength of an electromagnet can be increased.
Original Khojo Papers practice question — not from a past board paper.
Answer
By increasing the current flowing through the coil, and by increasing the number of turns in the coil. Using a soft iron core also increases the strength.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The magnetic field of a solenoid depends on the current, the number of turns per unit length and the core material.
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