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Q.

Magnetic field lines due to a straight wire carrying a current are

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a

Straight

b

Circular

c

Parabolic

d

Elliptical

answer is B.

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Detailed Solution

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  • The schematics display the magnetic field arrangement that surrounds a current-carrying straight wire.
  • The concentric circles with their centers on the wire make up the magnetic field lines that surround a straight conductor carrying current.
  • The Right-Hand Thumb Rule can be used to determine the direction of magnetic field lines.
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