G12 Right Hand Rule

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| By FrankFabra

FrankFabra

Community Contributor

Quizzes Created: 1 | Total Attempts: 210

Questions: 10 | Attempts: 212 | Updated: Jun 7, 2024

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Questions and Answers

1.

To create a force, the magnetic field and the current have to be parallel
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
They should be perpendicular

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2.

What is the direction of the force?
- A.
  
  Up
- B.
  
  Down
- C.
  
  Right
- D.
  
  Left
Correct Answer
A. Up

Explanation
The direction of the force is up.

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3.

Which diagram shows the correct shape of the field?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
D. D

Explanation
Diagram D shows the correct shape of the field because it has the straightest edges and the most symmetrical shape compared to the other diagrams. The other diagrams have irregular shapes and uneven edges, which would not be ideal for a field.

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4.

Where is the north pole created?
- A.
  
  Left
- B.
  
  Right
Correct Answer
A. Left

Explanation
The north pole is created on the left side. This implies that the question is asking about the creation or origin of the north pole, rather than its physical location. Therefore, the correct answer is "Left."

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5.

The magnetic field generated by a current into (X) the screen is...
- A.
  
  Clockwise
- B.
  
  Anticlockwise
Correct Answer
A. Clockwise

Explanation
The magnetic field generated by a current into the screen is clockwise because of the right-hand rule. According to the right-hand rule, if the thumb of the right hand points in the direction of the current, then the fingers curl in the direction of the magnetic field. In this case, if the current is flowing into the screen, the magnetic field lines will form a clockwise pattern around the current.

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6.

What is the direction of the force?
- A.
  
  Up
- B.
  
  Down
- C.
  
  Right
- D.
  
  Left
Correct Answer
C. Right

Explanation
The force is directed towards the right.

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7.

What is the direction of the force?
- A.
  
  Up
- B.
  
  Down
- C.
  
  Right
- D.
  
  Left
Correct Answer
D. Left

Explanation
The direction of the force is left.

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8.

If current is passed through a loop of wire, as shown, which direction will the loop rotate?
- A.
  
  Clockwise
- B.
  
  Anticlockwise
Correct Answer
A. Clockwise

Explanation
When current is passed through a loop of wire, the direction of the magnetic field around the wire is determined by the right-hand rule. According to the right-hand rule, if the thumb of the right hand points in the direction of the current, then the fingers curl in the direction of the magnetic field. In this case, if we imagine placing our right hand around the loop with the fingers pointing in the direction of the current, the thumb will point in the clockwise direction. Therefore, the loop will rotate in the clockwise direction.

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9.

If the ends of a wire loop are attached to two half-circular metal strips, arranged so that the two strips almost form a complete circle, and those strips are contacted by two "brushes" which connect to opposite poles of a battery, what polarity of voltage will be measured as the loop is rotated counter-clockwise?
- A.
  
  Right Postive, Left Negative
- B.
  
  Right Negative, Left Positive
Correct Answer
A. Right Postive, Left Negative

Explanation
When the wire loop is rotated counter-clockwise, the motion causes the brushes to make contact with the metal strips at different points. The right brush will make contact with the right half-circular strip, which is connected to the positive pole of the battery. Therefore, the right brush will measure a positive voltage. On the other hand, the left brush will make contact with the left half-circular strip, which is connected to the negative pole of the battery. Hence, the left brush will measure a negative voltage. Therefore, the polarity of voltage measured as the loop is rotated counter-clockwise is right positive and left negative.

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10.

The thumb, in the right hand rule, indicates the direction of the current
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
In the right hand rule, the thumb is used to indicate the direction of the current. This rule is commonly used in physics and electromagnetism to determine the direction of a magnetic field created by a current-carrying wire. By pointing the thumb in the direction of the current, the fingers can curl in the direction of the magnetic field lines. Therefore, the statement is true.

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