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Class 12 Physics - Chapter 4: Moving Charges and Magnetism MCQ Questions

10 Questions 20 Minutes
Answered: 0 / 10Unanswered: 10

Your Class 12 Physics Study Path

  1. 1LearnNCERT Solutions
  2. 2PracticeChapter MCQs
  3. 3TestChapter Test
  4. 4PrepareSample Papers
  5. 5Exam PracticePrevious-Year Papers
  6. 6Final CheckMock Test
Question 1

In a cyclotron, a charged particle

Question 2

A wire of fixed length is turned to form a coil of one turn. It is again turned to form a coil of three turns. If in both cases same amount of current is passed, then the ratio of the intensities of magnetic field produced at the centre of a coil will be

Question 3

An electron is projected with uniform velocity along the axis of a current¬carrying long solenoid. Which of the following is true?

Question 4

Two solenoids having lengths L and 2L and the number of loops N and 4N, both have the same current, then the ratio of the magnetic field will be

Question 5

Biot-Savart law indicates that the moving electrons (velocity v) produce a magnetic field B such that

Question 6

The ratio of the magnetic field at the centre of a current-carrying circular wire and the magnetic field at the centre of a square coil made from the same length of wire will be

Question 7

A charged particle will not move with a constant velocity in a region where in,

Question 8

A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R. One of the arcs AB of the ring subtends an angle θ at the centre. The value of the magnetic induction at the centre due to the current in the ring is

Question 9

An electron and a proton enter a magnetic field perpendicularly. Both have same kinetic energy. Which of the following is true

Question 10

Consider a wire carrying a steady current, l placed in a uniform magnetic field B perpendicular to its length. Consider the charges inside the wire. It is known that magnetic forces do no work. This implies that

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