MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
The diagram below shows the top view of the Wire A shown by a cross (X), carrying current into the plane of the paper. Which of the compasses is correctly aligned with the magnetic field produced by the current carrying wire? (a) Only 1 is aligned (b) Only 2 is aligned (c) Both 1 and 2 are aligned (d) Both 1 and 2 are not aligned
Topic: Magnetic field around a straight conductor
Question wording verified against source paper
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Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(a) Only 1 is aligned.
Explanation
For current into the page, the magnetic field is clockwise. Compass 1 is tangential in the correct direction; compass 2 should point downward.
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