Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Olympiad workbookNSEPMagnetic Effects of Current

Current I flows through a long thin walled metallic cylinder of radius R with a thin longitudinal slit of width ( R) running parallel to the axis of the cylinder. The magnetic induction B produced at any point on the axis of the cylinder is approximately

Options

  1. AB = zero
  2. BB = ₀ I 2 R^2
  3. CB = ₀ I 4 ^2 R^2
  4. DB = ₀ I 2 R^2

Correct answer

C. B = ₀ I 4 ^2 R^2

Step-by-step solution

No Solution

Practice Magnetic Effects of Current on Quantrex Academy →

More from Magnetic Effects of Current

A wire in the shape of a square frame carries a current I and produces a magnetic field B_ s at its centre. Now the wire is bent in the shape of a circle and carries the same curreA coil 2.0 cm in diameter has 300 turns. If the coil carries a current of 10 mA and lies in a magnetic field 5 10⁻² ~T , the maximum torque experienced by the coil isAn infinitely long straight non-magnetic conducting wire of radius a carries a dc current I . The magnetic field B , at a distance r(r < a) from axis of the wire isA neutral metal bar moves at a constant velocity v to the right through a region of uniform magnetic field directed out of the page, as shown. Therefore,Paragraph: The following questions are concerned with experiments on the characterization and use of a moving coil galvanometer. The series combination of a variable resistance R ,A rectangular loop carrying a current is placed in a uniform magnetic field. The net force acting on the loopThe SI unit of permeability of free space isA tightly wound long solenoid carries a current 5 A . An electron shot perpendicular to the solenoid axis inside it revolves at a frequency 10^8 rev / s . The number of turns per m Full Magnetic Effects of Current list All Olympiad workbook PYQs