4 years ago

Which is best used with a bar magnet to produce an electric current?

Physics

1 answer:

Charra [1.4K]4 years ago

3 0

A complete loop/ring of wire

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In a tug of war, two teams exerts a force of 30 N each. What is the net force acting on the rope?

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The force exerted by each team is 30 N. The forces are in the direction opposite to each other.

Force exerted by team 1, $F_{1}=30 N$

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3 years ago

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3 years ago

For a particular scientific experiment, it is important to be completely isolated from any magnetic field, including the earth's

Ivanshal [37]

Answer:

The magnetic field at the center of the coil is $B =53 \mu T$

Explanation:

From the question we are told that

The magnetic field of earth is $B_e = 50 \mu T = 50 *0^{-6} \ T$

The diameter of the wire is $d = 1.0\ m$

The radius is $r = \frac{1}{2} = 0.5 \ m$

The number of turn is $N = 200 \ turns$

The current it is carrying is $I = 0.211 \ A$

The earth magnetic field strength at the center of the coil is mathematically represented as

$B = N \frac{\mu_o * I }{2 * r}$

Where $\mu_o$ is the permeability of free space

$\mu_o = 4\pi * 10^{-7} N/A^2$

$B = 200* \frac{ 4\pi * 10^{-7} * 0.211 }{2 * 0.5}$

$B = 5.304*10^{-5}$

$B =53 \mu T$

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3 years ago