A circuit consists of a conducting bar of length 60 cm, sliding along two parallel conducting rails. The bar slides to the left with constant velocity through a 5.40 X 10^-4 T uniform
magnetic field and a velocity of 30 m/s.
a. Find the magnitude of EMF
b. Find the current that passes through the resistor R = 20 ohms.
c. What is the direction of the current m

specific latent heat of fusion, lf, of a substance is defined as the amount of heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.

explanation:

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j