Electric currents `I_1` and `I_2` are flowing in two mutually perpendicular conductors as shown in figure. Find the equation of locus of zero magnetic field points.

Two insulating infinite long conductors carrying currents I_1(=2A) and I_2(=4A) lie mutually perpendicular to each other in the same plane, as shown in figure. Find the magnetic field at the point P(a,b), where a=4cm , , b=3cm .

Two parallel wires C and D placed perpendicular to the plane of paper at a separation of r(=8cm) , carry electric currents I_1=6A and I_2=3A in opposite directions as shown in figure. Find the point on the line CD where the resultant magnetic field is zero.

An electric current of I ampere is flowing in a long conductor CG as shown in figure. Find the magnitude and direction of magnetic induction at the centre O of circular part.

Two parallel wires P and Q placed distance r apart. They are carrying currents I_1 and I_2 where I_1gtI_2 , but in opposite directions as shown in figure. Find the point on the line PQ where the resultant magnetic field is zero.

An electric current I is flowing through an infinitely long conductor bent into the from as shown in the figure. Find the magnitude and direction of magnetic field at the centre of the semi-circular part of the conductor.

Two parallel wires P and Q placed at a separation d= 6 cm carry electric currents i_1= 5A and i_2= 2A in opposite directions as shown in figure. Find the point on the line PQ where the resultant magnetic field is zero.

Two parallel wires P and Q placed at a separation d= 6 cm carry electric currents i_1= 5A and i_2= 2A in opposite directions as shown in figure. Find the point on the line PQ where the resultant magnetic field is zero.

Two parallel wires P and Q placed at a separation d= 6 cm carry electric currents i_1= 5A and i_2= 2A in opposite directions as shown in figure. Find the point on the line PQ where the resultant magnetic field is zero.

An electric current I flows through an infinitely long conductor as shown in Figure 2(a) below. Write an expression and direction for the magnetic field at point P.