Magnetic Effects of Current and Magnetism

A long straight wire of radius a carries a steady current I. The current is uniformly

A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section.…

A long wire carrying a steady current is bent into a circular loop of one turn.

A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at…

A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane

A bar magnet with magnetic moment 2.5x10³ JT⁻¹ is rotating in horizontal plane in the space containing magnetic induction B=4x10⁻⁵…

A thermocouple is made from two metals, antimony and bismuth. If one junction

A thermocouple is made from two metals, antimony and bismuth. If one junction on the couple is kept hot and…

In producing chlorine through electrolysis 100 watt power at 1125 V is being

In producing chlorine through electrolysis 100 watt power at 1125 V is being consumed. How much chlorine per minute is…

“On flowing current in a conducting wire the magnetic field is produced around it”.

"On flowing current in a conducting wire the magnetic field is produced around it". It is a law given by…

If a magnetic substance is kept in a magnetic field, then which of the following

If a magnetic substance is kept in a magnetic field, then which of the following is thrown out Options (a)…

An electric current passes through a long straight wire

An electric current passes through a long straight wire. At a distance 5 cm from the wire, the magnetic field…

A wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle

A wire of length 1 m is placed in a uniform magnetic field of 1.5 tesla at an angle of…

The magnetic susceptibility of a material of a rod is 449. Permeability of vaccum

The magnetic susceptibility of a material of a rod is 449. Permeability of vaccum is 4 π x 10⁻⁷ henry/m.…