Top View 2 mat 1 0 fixed wire sliding V= 10 I’m km / hi fixed wire

Top View 2 mat 1 0 fixed wire sliding V= 10 I’m km / hi fixed wire

t = 0 the rail is 2 meters from the bulb.
This circuit will take advantage of the Earth’s magnetic field.This has a
magnitude of 50×10^-6 T and is directed downward at an angle of 66 degrees with respect to the
the ground, as shown below.
At time t=0, what is the magnetic flux through the wire+rail loop?

Attachment 1
Attachment 2

Top View2 mat 1 0fixed wireslidingV= 10I’mkm / hifixed wire