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around an axis perpendicular to the lines. Calculate the magnetic flux through the loop.
and is tightly fitted in a coil. Calculate the permeability of the material when the cylinder is pushed into the coil and makes the magnetic flux density of the coil to be reduced by 0.1%.
.
.
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if we twist the loop by 
around its diameter and the radius of the loop is 8 cm.
and the ground speed of the airplane is 830 km/h.
is placed perpendicular to the magnetic force in a homogeneous magnetic field of a flux density that increases by 0.2 T every second. Calculate how much current is induced in the loop with an internal resistance of 
.
and a magnetic field at the end with a density of 0.18 T is surrounded by a wire loop with a resistance 
. Calculate the induced current in the loop if we change the direction of the current in the electromagnet within 10 ms.
.
is laid along the north pole of a magnet, and then it is turned the opposite way in time 19 ms. The magnetic field density at the north pole of the magnet is 1 T. What voltage is induced?
and next to it is another smaller coil with 15 threads. Calculate the induced voltage in the small coil if a current of 4 A is passed through the large coil and the time required to establish the magnetic field in the large coil is 0.2 s.
of copper is 5000 and the permeability of free space is 
.
is placed so that the field forces are perpendicular to its cross-section. Calculate the voltage induced in the coil if the magnetic field density increases by 1 T in 0.4 s.
, and 1200 turns.
.
