A sensitive magnetic instrument can be shielded very effectively from outside magnetic…
Physics · JEE Main · NTA Exams — Magnetic Effects of Current and Magnetism
A sensitive magnetic instrument can be shielded very effectively from outside magnetic field by placing it inside a box of
- Teak wood
- plastic material
- A metal of low magnetic permeability
- A metal of high magnetic permeability
Answer
(D) A metal of high magnetic permeability
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A steady current is set up in a cubic network composed of wires of equal resistance and length d as shown in…
- A horizontal overhead powerline is at a height of 4m from the ground and carries a current of 100 A from east…
- The forces existing between two parallel current carrying conductors is F. If the current in each conductor…
- The coercivity of a bar magnet is 4000A/m .In order to demagnetize it is placed inside a solenoid of length…
- A toroidal solenoid has 3000 turns and a mean radius of 10 cm. It has soft iron core of relative permeability…
- Two long parallel wires are at a distance 2d apart. They carry steady equal current flowing out of the plane…
- Three straight parallel current carrying conductors are shown in the figure. The force experienced by the…
- The current in wire is directed towards east and the wire is placed in magnetic field directed towards north…
More Magnetic Effects of Current and Magnetism questions · Browse all practice questions