A long straight wire is placed along the axis of a circuit ring of radius R. The mutual inductance of this system is

L-R circuit and mutual inductance

The figure shows a long straight wire carrying a current I_1 along the axis of a circular ring carrying a current I_2 . Identify the correct statement.

A current I flows in a long straight wire with cross-section haviing the form of a thin half-ring of radius R (Fig). Find the induction of the magnitude field at the point O .

A long straight wire is located parallel to an infinite conducting plate. The wire is located parallel to an infinite conducting plate. The wire cross-sectional radius is equal to a , the distance between the axis of the wire and the plane equals b . FInd the mutual capacitance of this system per unit length of the wire under the condition a lt lt b .

A long, straight wire carries a current along the z-axis. One can find two points in the x-y plane such that