The magnetic field due to a short magnet a point on its axis at distance X cm from the middle point of the magnet is $200 g a u s s$ . The magnetic field at a point on the neutral axis at a distance X cm from the middle of the magnet is

100 g a u s s

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400 g a u s s

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50 g a u s s

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200 g a u s s

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Solution

The correct option is A $100 g a u s s$
As we know that,
On the axis $B = (2 M / x^{3})$
∴ $200 = (2 m / x^{3})$
∴ $(M / x^{3}) = 100$
∴ On the equator $B = 100 G a u s s$ .

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The magnetic field due to a short magnet a point on its axis at distance X cm from the middle point of the magnet is 200gauss. The magnetic field at a point on the neutral axis at a distance X cm from the middle of the magnet is

The correct option is A 100gaussAs we know that,On the axis B=(2M/x3)∴ 200=(2m/x3) ∴ (M/x3)=100∴ On the equator B=100Gauss.

The magnetic field due to a short magnet a point on its axis at distance X cm from the middle point of the magnet is $200 g a u s s$ . The magnetic field at a point on the neutral axis at a distance X cm from the middle of the magnet is

The correct option is A $100 g a u s s$
As we know that,
On the axis $B = (2 M / x^{3})$
∴ $200 = (2 m / x^{3})$
∴ $(M / x^{3}) = 100$
∴ On the equator $B = 100 G a u s s$ .