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3 years ago

Which statement describes the magnetic field within a bar magnet?

Physics

1 answer:

Aleksandr [31]3 years ago

6 0

Since you did not put the choices of statements, here is what describes magnetic field within a bar magnet:

- from a bar magnet, magnetic field lines are forming closed lines.

- at either pole of the magnet, the magnetic field of a bar magnet is strongest. It is equally compared to the north pole with the south pole

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The earth has a vertical electric field at the surface,pointing down, that averages 102 N/C. This field is maintained by various

Schach [20]

Answer:

$q = -461532.5 \ C$

Explanation:

From the question we are told that

The electric filed is $E = 102 \ N/C$

Generally according to Gauss law

=> $E A = \frac{q}{\epsilon_o }$

Given that the electric field is pointing downward , the equation become

$- E A = \frac{q}{\epsilon_o }$

Here $q$ is the excess charge on the surface of the earth

$A$ is the surface area of the of the earth which is mathematically represented as

$A = 4\pi r^2$

Where r is the radius of the earth which has a value $r = 6.3781*10^6 m$

substituting values

$A = 4 * 3.142 * (6.3781*10^6 \ m)^2$

$A =5.1128 *10^{14} \ m^2$

$q = -E * A * \epsilon _o$

Here $\epsilon_o$ s the permitivity of free space with value

$\epsilon_o = 8.85*10^{-12} \ m^{-3} \cdot kg^{-1}\cdot s^4 \cdot A^2$

substituting values

$q = -102 * 5.1128 *10^{14} * 8.85 *10^{-12}$

$q = -461532.5 \ C$

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3 years ago

Quick puzzle question. If god created the universe who created god?

mrs_skeptik [129]

Answer:

My mom always told me he was just there

Explanation:

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The Starship Enterprise is powered by combining matter with antimatter. Suppose 1 kg of each are combined and ejected backward a

tino4ka555 [31]

Answer:

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Answer:

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Explanation:

a=v/t

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melamori03 [73]

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Explanation:

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