Mathematics · Magnetic Effects of Current

Compute the magnetic induction in air at a point 10 cm away from a long straight wire carrying a current of 20 A.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

16 × 10-5 T
25 × 10-5 T
34 × 10-5 T✓
43 × 10-5 T

Correct answer

4 × 10-5 T

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Compute the magnetic induction in air at a point 10 cm away from a long straight wire carrying a current of 20 A.

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Compute the magnetic induction in air at a point 10 cm away from a long straight wire carrying a current of 20 A.

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