Question 1

2. B)  R-3. C)  R-2. D)  R3. E)  R-1. " class="answers-bank-image d-inline" rel="preload" > The magnetic field at point P, due to the current in the very long wire, varies with distance R according to

Accepted Answer

A)   R2.
B)   R-3.
C)   R-2.
D)   R3.
E)   R-1. F) D) and E)
G) A) and B)

Question 2

A circular, 20-turn coil of radius 5.0 cm is oriented in such a way that its axis makes a 30º angle with a uniform magnetic field of 0.15 T. What is the torque on the coil when it carries a current of 2.5 A?

Accepted Answer

A)   1.5 × 10-3 N · m
B)   9.4 × 10-3 N · m
C)   2.9 × 10-2 N · m
D)   5.1 × 10-2 N · m
E)   0.59 N · mF) B) and E)
G) C) and D)

Question 3

The radius of curvature of the path of a charged particle moving perpendicular to a magnetic field is given by

Accepted Answer

A)   qE/m.
B)   Bm/qv.
C)   Bv/qm.
D)   mv/qB.
E)   Bq/mv.F) A) and B)
G) A) and D)

Question 4

In a mass spectrometer, chlorine ions of mass 35u and charge +5e are emitted from a source and accelerated through a potential difference of 250 kV. They then enter a region with a magnetic field, which is perpendicular to their original direction of motion. The chlorine ions exit the spectrometer after being bent along a path with a radius of curvature 3.5 m. What is the value of the magnetic field u = 1.66 × 10-27 kg, e = 1.6 × 10-19 C) ?

Accepted Answer

A)   3.9 × 10-2 T
B)   2.5 × 10-2 T
C)   3.1 × 10-2 T
D)   5.4 × 10-2 T
E)   None of the above.F) A) and B)
G) B) and C)

Question 5

In a mass spectrometer, ions of nickel with mass 9.62 × 10-26 kg and charge +2e are accelerated through a potential difference of X volts and then deflected in a magnetic field of 0.15 T. If the radius of curvature of the ions is 0.55 m, then calculate the value of the potential difference X.

Accepted Answer

A)   5.7 kV
B)   274 kV
C)   137 kV
D)   11.3 kV
E)   None of the above.F) A) and E)
G) A) and B)

Exam 19: Magnetism

The magnetic field at point P, due to the current in the very long wire, varies with distance R according to

Correct Answer
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The radius of curvature of the path of a charged particle moving perpendicular to a magnetic field is given by

Correct Answer
verified

In a mass spectrometer, ions of nickel with mass 9.62 × 10^-26 kg and charge +2e are accelerated through a potential difference of X volts and then deflected in a magnetic field of 0.15 T. If the radius of curvature of the ions is 0.55 m, then calculate the value of the potential difference X.

Correct Answer
verified

A circular, 20-turn coil of radius 5.0 cm is oriented in such a way that its axis makes a 30º angle with a uniform magnetic field of 0.15 T. What is the torque on the coil when it carries a current of 2.5 A?

Correct Answer
verified

Correct Answer
verified

Exam 19: Magnetism

The magnetic field at point P, due to the current in the very long wire, varies with distance R according to

Correct AnswerverifiedShow Answer

The radius of curvature of the path of a charged particle moving perpendicular to a magnetic field is given by

Correct AnswerverifiedShow Answer

In a mass spectrometer, ions of nickel with mass 9.62 × 10-26 kg and charge +2e are accelerated through a potential difference of X volts and then deflected in a magnetic field of 0.15 T. If the radius of curvature of the ions is 0.55 m, then calculate the value of the potential difference X.

Correct AnswerverifiedShow Answer

A circular, 20-turn coil of radius 5.0 cm is oriented in such a way that its axis makes a 30º angle with a uniform magnetic field of 0.15 T. What is the torque on the coil when it carries a current of 2.5 A?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

In a mass spectrometer, ions of nickel with mass 9.62 × 10^-26 kg and charge +2e are accelerated through a potential difference of X volts and then deflected in a magnetic field of 0.15 T. If the radius of curvature of the ions is 0.55 m, then calculate the value of the potential difference X.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified