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4.5.3a Magnetic effect of a current and its applications

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Question 26

A current in a solenoid produces a uniform magnetic field inside the solenoid. The magnetic field direction is due south.

Which changes will produce a weaker magnetic field with a direction due north?

A

Use a smaller current and turn the solenoid through 90∘90^\circ90∘.

B

Use a larger current and turn the solenoid through 180∘180^\circ180∘.

C

Use a smaller current and reverse the current.

D

Use a larger current and reverse the current.

Markscheme

4.5.3a Magnetic effect of a current and its applications Questions

  1. IGCSE
  2. /Physics
  3. /4.5.3a Magnetic effect of a current and its applications

30 exam-style questions on CIE IGCSE Physics 4.5.3a Magnetic effect of a current and its applications. Each one has a worked solution and a mark scheme showing where the marks go.

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