Ihave to draw a wave on a separate sheet of paper given the following measurements down below. i'm a bit confused, do i just use a ruler and make the crest 1 cm long across along with the trough and wave length like i did in the pic. did i do it correctly?
wave #1:
1 cm crest
1 cm trough
2 cm wavelength

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.