Cambridge IGCSE Physics practice
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At a glance
MCQ
Type
cambridge_mcq
Style
Topic
Magnetic effect of a current
Exam-style question
What happens to the magnetic field around a straight wire if the current is increased?.
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Question 1 of 5
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Description
A straight wire carries an electric current. The current can be increased or reversed.
State the effect of increasing the current on the magnetic field strength around the wire.
Aim for approximately 1 distinct marking point.