The strength of magnetic field around a current carrying conductor is
(a) inversely proportional to the current but directly proportional to the square of the distance from wire.
(b) directly proportional to the current and inversely proportional to the distance from wire.
(c) directly proportional to the distance and inversely proportional to the current
(d) directly proportional to the current but inversely proportional the square of the distance from wire.
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the strength of the magnetic field around a current carrying conductor is directly proportional to the current but inversely proportional to the distance from the wire.
Option b.
Explanation:
- The more the rate of flow of current the more is the the strength of the magnetic field. As a result of this if the value of the current is very high the magnetic field is also high.
- The magnetic field decreases if we move a large amount of distance from the the magnetic wire. The magnetic field is strongest just close to the wire
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