Question

List the factors on which the magnetic field produced by a current carrying straight conductor depends ? State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic field lines due to a straight current carrying conductor.

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Answer 1

the factors are
a) the amount of current flowing through a conductor.magnetic field is directly proportional to the current
b) magnetic field is inversely proportional to the distance from the conductor.
Right hand thumb rule is the rule
we found that the iron fillings were arranged in the form of concentric circles represent the magnetic field lines
Hope this is useful..

Answer 2

➡The intensity of current.
➡The number of turns on the current carrying conductor.
RULERIGHT HAND THUMB RULE.