The usual voltage of alpha rhythm is: (A) 5 mv, (B) 10 mv, (C) 50 mv, (D) 100 mv
Answer is C. Alpha waves are neural oscillations in the frequency range of 8-12 Hz arising from the synchronous and coherent (in phase or constructive) electrical activity of thalamic pacemaker cells in humans. Ref: guyton and hall textbook of medical physiology 12 edition page number: 818,819,820