The figure given below shows a current-carrying conductor placed between two magnets. Which of the given arrows correctly indicates the direction of the force acting on the conductor?
Correct answer: A. R
- A. R
- B. P
- C. Q
- D. S
Explanation
Using Fleming's left-hand rule, when the index finger is pointed in the direction of the magnetic field (North to South), while the second finger is pointed into the plane (cross indicates current into the plane while dot indicates out of the plane). The direction in which the thumb points will be the direction of force. Which in this case is the same as R.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
Practise Electromagnetism
1,176 free Electromagnetism MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electromagnetism questions
The direction of the magnetic lines of force depends upon:
The diagram shows a current-carrying conductor RS of length 2m placed perpendicular to a magnetic field of flux density 0.5 tesla. The resulting force on the conductor is I N acting into the plane. of paper. What is the magnitude and direction of the current?
Two wires carry currents in same direction which is correct
The direction of the magnetic lines of force can be found by using:
A conductor of length 1m, carrying a current of 1A is placed at an angle of 45o to the magnetic field of 1 gauss. The force acting on the conductor is
A straight conductor carries a current I and is split into a circular loop of radius r as shown in Fig. The magnetic field at the center O of the circle is