Question 33 of 276
In a co-axial straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero :
Show answer and solution
Answer: (A) outside the cable
outside the cable
Magnetic Effects & Magnetism
JEE Main level, single correct, medium
outside the cable
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More Physics practice
- Magnetic Effects & MagnetismThe magnetic field at the centre of a circular coil of radius carrying current is . At an axial point at distance from the centre, the magnetic field is:
- Magnetic Effects & MagnetismThe magnetic susceptibility of a diamagnetic substance is:
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- Magnetic Effects & MagnetismThe ratio of magnetic field at the centre of a current carrying coil of radius to the magnetic field at distance from the centre of coil on its axis is . The value of is _____.
- Magnetic Effects & MagnetismTwo identical circular wires of radius and carrying current are placed in perpendicular planes as shown in figure. The net magnetic field at the centre of the circular wires is________\times {10}^{-8}T.
(Take ) - Magnetic Effects & MagnetismA rod with circular cross-section area and length is wound uniformly with turns of an insulated wire. If a current of flows in the wire windings, the total magnetic flux produced inside windings is . The relative permeability of the rod is
(Given : Permeability of vacuum )
JEE Main Physics practice question on Magnetic Effects & Magnetism (Magnetic Field), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.