Faraday

When did Faraday build the first form of the electric motor?

• 1830

• 1819

• 1820

• 1821

Where did faraday work as a scientist?

• Royal Institution

• Sorbonne

• National Health Service

• Government Facilities

What position was Faraday given in 1821?

• Professor

• Superintendent

• Ambassador

• Assistant Superintendent

At what age did Faraday publish his first academic paper?

• 27

• 21

• 30

• 24

A circular conducting loop is in a region of magnetic field B directed out of the page, as shown below. The magnitude of the magnetic field is decreasing. The direction of the induced current in the loop is

• Clockwise

• counterclockwise

• Undefined because the current is zero

• Impossible to determine without knowing the rate of change of field

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

The figure shows a bar magnet moving vertically upward toward a horizontal coil. The poles of the bar magnets are labeled X and Y. As the bar magnet approaches the coil it induces an electric current in the direction indicated on the figure (counter- clockwise as viewed from above). What are the correct polarities of the magnet?

• X is a north pole,Y is a south pole

• X is a south pole,Y is a north pole

• Both X and Y are north poles

• Both X and Y are south poles

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

A conducting ring is moving from left to right through a region that contains a constant magnetic field as shown in the diagram. In which region is there an induced current in the ring?

• A and E

• B and D

• B,C and D

• A,B,C and D

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the direction of the induced magnetic field?

• Left

• Right

• Up

• Down

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the direction of the induced magnetic field?

• Left

• Right

• Up

• Down

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NGSS.HS-PS2-5

What is Faraday's law of electromagnetic induction?

• A) It states that a change in magnetic field within a closed loop induces an electromotive force.

• B) It states that electric current is directly proportional to voltage and inversely proportional to resistance.

• C) It states that the force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

• D) It states that energy cannot be created or destroyed, only transformed.

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