Question

Question 26 1 pts A 50 MHz differential-mode current of 300 mA flows in a circuit loop with an area of 3 mm by 4 mm. Assuming a ground plane is present, what is the worst-case electric field strength at a distance of 1m from the loop? 120 microV/m 240 microV/m 360 microV/m more than 480 microV/m Question 27 1 pts Determine the total shielding effectiveness S, in dB, of an aluminum shield of thickness 0.01 cm at f= 100 kHz, for a source in the far field. Use a total conductivity of sigma = 3.8 x 10? (S/m) and a permeability of mu = 4pi x 10-7(H/m) for aluminum. O 116 dB O 118 dB O 120 dB O 122 dB

Answer 1

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26)option (b)

240 microV/m

27) option (a)

116 db

28)option (C)

0.01,1000