A long straight wire carries the current along +ve x-direction. Consider four points in space `A(0,1,0), B(0,1,1), C(1,0,1), and D(1,1,1)`. Which of the pairs will have the same magnitude of magnetic field?

A straight conductor carriers a current alon the z -axis Consider the points A(a,0,0),B(0,-a,0),C(-a,0,0) and D(0,a,0) (i) All four points have magnetic fields of the same magnitude. (ii) All four points have magnetic fields of the different direction. (iii) The magnetic fields at A and C are in opposite directions (iv) The magnetic fields at A and B are mutually perpendicular

The direction cosines of x-axis are (A) 0,0,1 (B) 1,0,0 (C) 0,1,0 (D) 0,1,1

The direction cosines of x-axis are (A) 0,0,1 (B) 1,0,0 (C) 0,1,0 (D) 0,1,1

The direction cosines of x-axis are (A) 0,0,1 (B) 1,0,0 (C) 0,1,0 (D) 0,1,1

What are the direction cosines of the y-axis ? a) 0,1,0 b) 1,0,0 c) 0,0,1 d) 0,1,1

Four very long straight wires carry equal electric currents in the +z direction. They intersect the xy plane at (x,y)=(-a,0),(0,a),(a,0), and (0,-a) . The magnetic force exerted on the wire at position (-a,0) is along

Four very long straight wires carry equal electric currents in the +z direction. They intersect the xy plane at (x,y)=(-a,0),(0,a),(a,0), and (0,-a) . The magnetic force exerted on the wire at position (-a,0) is along

A long, straight wire lies along the y-axis and carries a current I=8A in the y-direction (as shown in Fig) In addition to the magnetic field due to the current in the wire, a uniform magnetic field vecB_0 with magnitude 1.50xx10^-6T is in the +x direction. What is the total field (magnitude and direction ) at following points in the plane? (a) x=0,z=1.00m (b) x=1.00m,z=0 (c) x=0, z=-0.25m