EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There is a(n) ____ relationship between the strength of an electrical current and the strength of it’s magnetic field
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rocky
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good
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inverse
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direct
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Explanation:
Detailed explanation-1: -The magnetic field strength is directly proportional to the current flowing in the circuit. The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow.
Detailed explanation-2: -The formula F = (E + v B) tells the relationship between electric and magnetic fields. In accordance with the constitutive relations, the electric displacement D and magnetic intensity H are related to the electric field and magnetic flux density by the formulas: D= E, B= H.
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