Question

current of 10 ampere is flowing from east to west in a long straight wire kept on horizontal table the magnetic field developed at a distance of 10 cm due to North on the table is​

Answer 1

Answer:

Explanation:

ANSWER :As the object is moved from infinity towards the pole of a concave mirror the image shifts from the focus of the mirror to infinity. When the object is at infinity, the image is formed at the principal focus or in the focal plane. size of image is diminished .

Answer 2

The magnetic field developed at a distance of 10 cm due to North on the table is​ $2.0\times10^{-5}\ T$

Explanation:

Given that,

Current = 10 A

From east to west

Distance = 10 cm due to north

We need to calculate the magnetic field

Using formula of magnetic field

$B=\dfrac{\mu_{0}I}{2\pi r}$

Put the value into the formula

$B=\dfrac{4\pi\times10^{-7}\times10}{2\pi\times10\times10^{-2}}$

$B=0.00002\ T$

$B=2.0\times10^{-5}\ T$

Hence, The magnetic field developed at a distance of 10 cm due to North on the table is​ $2.0\times10^{-5}\ T$

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Topic : magnetic field

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