Answer to Question #61362 in Electricity and Magnetism for bebeji

Question

9) A certain generator consists of a rectangular coil of 250 turns and an area of 50cm2. The coil rotates at a speed of 100 revolutions per second in a horizontal magnetic field 0.3T. Calculate the maximum induced emf in the coil and the induced emf when the plane of the coil is inclined at an angle of 35o to the horizontal
a) 235.6V and 193.0V
b) 344.2V and 230.2V
c) 144.3V and 96.5V
d) 56.4V and 26.7V
10) At which of the following values of t is the magnitude of the emf induced in the coil a maximum if a magnetic field perpendicular to the plane of a flat coil of copper wire has a time variation of the magnetic flux density given by B=Bosin(2Ùt=T) where Bo is the peak value of the magnetic flux density and T the period
a) T/8
b) T/4
c) 3T/8
d) T/2