# Physics 102 - Magnetic Fields

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| By Fet14
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Fet14
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Quizzes Created: 1 | Total Attempts: 491
Questions: 5 | Attempts: 491

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A magnetic field is the magnetic influence of electric currents and magnetic materials

Questions and Answers
• 1.

### An electron moves in the plane of this paper toward the top of the page. A magnetic field is also in the plane of the page and directed toward the right. The direction of the magnetic force on the electron is

• A.

Toward the top of the page

• B.

Toward the bottom of the page

• C.

Toward the left edge of the page

• D.

Toward the right edge of the page

• E.

Upward out of the page

Correct Answer
E. Upward out of the page
Explanation
The right-hand rule gives the direction. Be sure to account for the negative charge on the electron.

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• 2.

### A charged particle moves with velocity v in a magnetic field B. The magnetic force on the particle is a maximum when v is zero

• A.

True

• B.

False

Correct Answer
B. False
Explanation
The maximum value of sin  occurs for  = 90°.

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• 3.

### Please fill answer below magnetic field lines coming out of the paper are indicated by

Correct Answer
dots
Explanation
The correct answer is dots because according to the right-hand rule for magnetic fields, when magnetic field lines are coming out of the paper, they are represented by dots. This convention helps to visually represent the direction of the magnetic field and its flow.

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• 4.

### What is your opinion in this quiz

• A.

Excellent

• B.

Good

• C.

Normal

• D.

Not bad

Correct Answer(s)
A. Excellent
B. Good
C. Normal
D. Not bad
Explanation
The given answer options are all positive and indicate varying degrees of satisfaction or approval. "Excellent" suggests the highest level of satisfaction, "good" implies a positive opinion, "normal" indicates an average or neutral opinion, and "not bad" suggests a slightly positive opinion. These options cover a range of opinions, allowing the respondent to express their level of satisfaction or approval.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• May 10, 2014
Quiz Created by
Fet14

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