AP EAMCET · PHYSICS · Magnetic Effects of Current
Magnetic field to a current element at any point on its axis is _____
- A minimum
- B zero
- C yaries between minimum and maximum
- D depends on the position of the point
Answer & Solution
Correct Answer
(B) zero
Step-by-step Solution
Detailed explanation
From the Biot-Savart's law, Magnetic field due to current element dB=μoidlsinθ4πr2 The magnetic field on a current element is directly proportional to the sine of the angle between the current element and the position vector. The angle for a point on axis θ=0…
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