30. Induction and Inductance

What emf is created in a $1.3\mathrm{m}$long conductor moving at $45\text{m/s}$ in a $3.0\text{mT}$magnetic field? Assume the conductor's velocity is perpendicular to the field.

If the metal triangle shown in the figure is pushed to the left, farther into the magnetic field, what is the direction of the induced current in the triangle?

In a region of space, a magnetic field is increasing at $3\mathrm{T}/\mathrm{s}$. A square loop of wire with a side of $12\mathrm{cm}$ is oriented perpendicular to the field. The loop has a total resistance of $0.02\mathrm{\Omega }$. What current is induced in the loop?