NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 561 - 563 of 2320

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Question number: 561

» Magnetic Effects of Current and Magnetism » Electric Charge Moving in Magnetic Field

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MCQ▾

Question

proton of energy 8eV is moving in a circular path in a uniform magnetic field. The energy of an α-particle moving in the same magnetic field and along the same path will be-

Choices

Choice (4)Response

a.

6eV

b.

8eV

c.

4eV

d.

2eV

Question number: 562

» Magnetic Effects of Current and Magnetism » Moving Coil Galvanometer

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MCQ▾

Question

In ballistic galvanometer, the frame on which the coil is wound is non-metallic. It is

Choices

Choice (4)Response

a.

To avoid the production of induced emf

b.

To avoid the production of eddy currents

c.

To increase the production of induced emf

d.

To increase the production of eddy currents

Question number: 563

» Magnetic Effects of Current and Magnetism » Bar Magnet

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MCQ▾

Question

Which of the following is/are not the main difference between electric lines of force and magnetic lines of force?

(1) Electric lines of force are closed curves whereas magnetic lines of force are open curves.

(2) Magnetic lines of force cut each other whereas electric lines of force do not cut.

(3) Electric lines of force cut each other whereas magnetic lines of force do not cut.

(4) Electric lines of force are open curves whereas magnetic lines of force are closed curves.

Select the correct answers and mark it according to the following codes:

Choices

Choice (4)Response

a.

1 and 2 are correct

b.

2 and 4 are correct

c.

1,2 and 3 are correct

d.

1 and 3 are correct

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