Magnetic Effects of Electric Current
Physics ⇒ Electricity and Magnetism
Magnetic Effects of Electric Current starts at 9 and continues till grade 12.
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See sample questions for grade 10
A solenoid is 50 cm long and has 500 turns. What is the number of turns per meter?
Explain why soft iron is used as the core of an electromagnet.
If the direction of current in a straight conductor is reversed, what happens to the direction of the magnetic field around it?
State the difference between a permanent magnet and an electromagnet.
State the function of a commutator in an electric motor.
Who discovered the magnetic effect of electric current?
