Question

For the situation below (see picture below), where a patient is positioned near a power line, assume that the displacement current i_db = 3 μA.

If:

Z₁ = 30 kΩ,

Z₂ = 60 kΩ,

Z_G = 50 kΩ, and

Z_in = 1 MΩ,

what is the differential mode voltage seen by the amplifier due to the power line interference? (see picture below):

120V Power line w www Electrocardiogph Vam torn B ,ZA em idb Some useful equations: AR Av pL AR/R R = AL/L f 2TRC = 8.8x 10-12 Fm C = 8.8, X 2898 (um) T 1 E = aT +b1 2 (/K) T2 . 3 2.Te,& L Ca In(D/d) hC E = _ h 6.63x1034JS, C 3x10 msec Z2-21when Z, and Z2 are much less than Zin VAV V em n Chotal C+1-Gain) C