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MAVERICK [17]
3 years ago
14

A horseshoe magnet is held vertically with the north pole on the left and south pole on the right. A wire passing between the po

les, equidistant from them, carries a current directly away from you. In what direction is the force on the wire?
Physics
1 answer:
sergejj [24]3 years ago
8 0

Answer:

Force acts vertically downward

Explanation:

Solution:-

The force is downward. The field lines point from the north pole to the south pole, or left to right. We will apply the use of right-hand rule. Your fingers point in the direction of the current (away from you). Curl them in the direction of the field (to the right). Your thumb points in the direction of the force(downward).

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A glass optical fiber is used to transport a light ray across a long distance. The fiber has an index of refraction of 1.540 and
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Answer:

73.13°

Explanation:

According to snell's law,

n1sinθi = n2sinθr

n1/n2 = sinθr/sinθi

Critical angle is the angle of incidence at the denser medium when the angle of incidence at the less dense medium is 90°

This means i=C and r = 90°

The Snell's law formula will become

n1/n2 = sinC/sin90°

n2/n1 = 1/sinC

Where n1 is the refractive index of the less dense medium = 1.473

n2 is the refractive index of the denser medium = 1.540

Substituting the values in the formula,

1.540/1.473 = 1/sinC

1.045 = 1/sinC

SinC = 1/1.045

SinC = 0.957

C = sin^-1(0.957)

C = 73.13°

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What are earthquakes usually associated with?
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Answer:

the statement given is False.

Explanation:

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The correct statement is: When the air is hotter it has less pressure than when the air is cold.

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