What is the induced emf In a straight conductor moving perpendicular to a magnetic field (expression for motional emf)?

If the conductor carrying current is lying parallel to the magnetic field what will be the force?

A straight line conductor of length 0.4 m is moved with a speed of 7m/s perpendicular to a magnetic field of intensity 0.9 Wb/m2. The induced e. m. f. across the conductor is.

A conductor XY is moving through a uniform magnetic field of intensity B as shown in figure. ) The length of the conductor XY is 20cm. It is moving with a velocity 50m/s perpendicular to the magnetic field. If the induced emf in the conduc tor is 2V find the magnitudes of magnetic field?