Question

An electric current is produced using a bar magnet and a solenoid. Which changes will cause a decrease in the electric current produced? Check all that apply. using more wire loops in the solenoid using fewer wire loops in the solenoid using a stronger magnet moving the solenoid instead of the magnet moving the magnet more slowly

Answer 1

Answer: B and E: Using fewer wire loops in the solenoid , moving the magnet more slowly

Explanation: I just took the test

Answer 2

An electric current is produced using a bar magnet and a solenoid then using fewer wire loops in the solenoid will will cause a decrease in the produced electric current.

Magnetic field of solenoid depends on what?

Magnetic field of solenoid depends on the number of coils present in the solenoid and the amount of current flowing from the coil.

• If we increases the number of coils present in the solenoid then the electric currect is also increases.
• Fewer no. of loops on the solenoid decreases the amount of electric currect present in that coil.
• Using a stronger mangnet near the solenoid also incraeses the strength of the electric currect, as of the induced magnetic field.
• Moving a solenoid instead of magnet inside the loop, is also increases the electric currect.
• And moving of magnet near and far away from the solenoid fastly or slowly also increases the electric currect, due to electromagnetic induction.

Hence, only fewer wire loops decreases the electric currect.

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