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magnetic flux a straight wire carries a current i 10 a and passes above a loop of radius a 01 m as shown in figure
magnetic flux density of a spiral coil a wire is bent to form a flat spiral coil and carries a current i calculate the
magnetic field of a current sheet a thin layer of wires forms an infinite sheet of current there are n wires per meter
fields due to current sheets two infinite thin sheets of current are arranged as shown in figure 845 in the upper sheet
magnetic vector potential of current segment a very long but not infinite straight wire carries a current i and is
magnetic vector potential of loops a circular loop and a square loop are given as shown in figure 846a find the ratio
a coaxial cable as used in tv antennas has an inner conductor which is 05 mm in diameter and an outer conductor 5 mm in
magnetic scalar potential between the poles of a permanent magnet the magnetic scalar potential difference between the
a rectangular loop with sides a 10 mm and b 20 mm is placed on the xy plane in free space centered at the origin and
calculate the magnetic field intensity in the gaps of example 918 for finite permeability of iron assume the relative
application magnetization and magnetic field in a permanent magnet a very long cylindrical magnet has magnetization m
magnetic interface conditions a magnetic field intensity h is given at the interface between material 1 and 2 as shown
application self-inductance of long solenoid a long solenoid is wound on a hollow cylinder made of iron dimensions are
magnetization a very long cylindrical magnet has constant magnetization m directed as in figure 960 a solenoid made of
application magnetic dipole a small circular loop of radius a and a small square loop a x a are givena calculate the
in the method of virtual work there is no work performed only the possibility or the inference of work explain the
stored energy in a system of inductors an infinite solenoid with n turns per unit length and radius a carries a current
magnetic circuit with different materials a torus is made of two types of materials with four small gaps as shown in
stored energy in a magnetic device the core shown in figure 980 is made of two pieces two gaps exist between the two
application forces on magnetic poles of a gap in figure 984 calculate the force that exists between the two faces of
suppose the rails in figure 105a have a resistance romegam each the bar is perfectly conducting calculate the current
a small coil has a self-inductance of 10 muh a sinusoidal current of amplitude 01 a and frequency 1 khz passes through
any generator requires a given magnetic field to produce an emf one way of obtaining the required magnetic field is a
a small portable generator can be started by pulling on a cord to start the engine and supplies ac current directly to
application motional emf as a motion detector mechanism suppose you want to know if a train is moving on a rail but it