Lesson: Chapter - 15

Practice MCQ Questions
1. The pointer on a compass is the north pole of a small magnet. If a compass were placed next to a bar magnet, as shown above, in what direction would the pointer point?

(A)

(B)

(C)

(D)

(E)


2. A positively charged particle in a uniform magnetic field moves in a circular path in the clockwise direction, parallel to the plane of the page. In what direction do the magnetic field lines point?
(A) Out of the page
(B) Into the page
(C) To the left
(D) To the right
(E) In a clockwise pattern parallel to the plane of the page
3. What should one do to maximize the magnitude of the magnetic force acting on a charged particle moving in a magnetic field?
  I. Maximize the strength of the magnetic field  II. Minimize the particle’s velocity III. Ensure that the particle is moving in the same direction as the magnetic field lines
(A) I only
(B) I and II only
(C) I and III only
(D) II and III only
(E) I, II, and III
4. What is the magnetic force experienced by a negatively charged particle of 1.0 C that is moving upward at a velocity of 2.0 × 103 m/s in a magnetic field of strength 4.0 × 10–4 T, directed into the page?
(A) 0.8 N to the left
(B) 0.8 N to the right
(C) 2.0 × 10–7 N to the left
(D) 2.0 × 10–7 N to the right
(E) 5.0 × 106 N to the left
5. A charged particle is moving in a circular orbit in a magnetic field. If the strength of the magnetic field doubles, how does the radius of the particle’s orbit change?
(A) It is quartered
(B) It is halved
(C) It is unchanged
(D) It is doubled
(E) It is quadrupled
6. Which of the following is not a possible trajectory of a charged particle in a uniform magnetic field?
(A)
(B)
(C)
(D) >
(E)
7. A positively charged particle of 2.0 C moves upward into an area where both a magnetic field and an electric field are acting. The magnetic field has a magnitude of 4.0 × 10–4 T and the electric field has a magnitude of 0.1 N/C. At what velocity must the particle be moving if it is not deflected when it enters this area?
(A) 4.0 × 10–3 m/s
(B) 125 m/s
(C) 250 m/s
(D) 500 m/s
(E) The particle will be deflected to the left regardless of its velocity
8. A current-carrying wire in a magnetic field is subject to a magnetic force. If the current in the wire is doubled, what happens to the magnetic force acting on the wire?
(A) It is quartered
(B) It is halved
(C) It is unchanged
(D) It is doubled
(E) It is quadrupled
9. Two wires carry current in opposite directions. Which of the following graphs represents the magnetic force acting on each wire?
(A)
(B)
(C)
(D)
(E) There is no net force acting on either wire
10. A current-carrying wire passes through a uniform magnetic field, as shown above. At which point is the magnetic field the strongest?
(A) A
(B) B
(C) C
(D) D
(E) The magnetic field strength is uniform throughout
Back Next

Next to display next topic in the chapter.

Practice Questions

Video Lessons and 10 Fully Explained Grand Tests

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

SAT Reasoning GRE General GMAT Test
More for You
MCQ with question Explanations Scholarships and Financial Aid

English Grammar

easy to learn English Grammar for test preparation

Sentence Completion

Learn to crack Sentence Completion section of the test

Chemistry for Test Preparation

Lessons with Practice questions -MCQs for Chemistry for Test preparation

All in this Category

You may be interested in

Colleges in cities of Balochistan

Comprehensive lists of colleges in ...

Queen Mary College - Lahore

A famous name incolleges in Lahore ...

Foreign Jobs

Jobs in many countries. opportuniti ...

Foreign Jobs in USA UK Australia and Canada

Many countries invite foreigners to ...

SAT-Subject Physics

Lessons and practice questions with ...

GRE Biology

Find what is GRE Biology and how to ...

FJMC - MBBS

Fatima Jinnah Medical College MBBS ...

NUST Engineering

National University of Science and ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA