The shape of magnetic field lines produced (i) inside a solenoid (ii) around a straight conductor, both carrying current of the same magnitude are, respectively :

Question

What are magnetic field lines? How is the direction of magnetic field at a point determined? Draw the pattern of magnetic field lines of the magnetic field produced by a current-carrying circular loop. Mark on it the direction of (i) current and (ii) magnetic field lines. Name the two factors on which the magnitude of the magnetic field due to a current-carrying coil depends.

Answer 1

Inside a solenoid, the magnetic field is uniform, with parallel and straight field lines. Around a straight current-carrying conductor, the magnetic field lines are concentric circles. This follows the right-hand thumb rule. Thus: Solenoid: straight field lines; Straight conductor: circular field lines. The correct answer is (a) straight and circular.

The shape of magnetic field lines produced (i) inside a solenoid (ii) around a straight conductor, both carrying current of the same magnitude are, respectively :

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The Correct Option is A

Solution and Explanation

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