Physics NEET test arrangement, earlier year questions, answers, and solution #5

NEET PHYSICS TEST ARRANGEMENT:  #5

QUESTION:

A coil of radius R rotating about a diametric axis with angular velovity ω in a uniform magnetic field B.Find the value of the maximum voltage developed. Radius R=10 cm and B= 5x10^-5 T. For half rotation it takes a time of 0.2 sec.

                         A.       3x10^-5 V   

                          B.        2.5x10^-5 V    

                          C.        5x10^-6 V                  

                          D.        5x10^-5 V       

ANSWER:    

                           ANSWER - B.       

SOLUTION:          

MAGNETIC FLUX LINKED WITH THE COIL:      

INDUCED EMF:

MAXIMUM VOLTAGE DEVELOPED: