circular wire loop of radius a = 30 cm in free space carries a time-harmonic current whose amplitude significantly varies along the loop. Which of the following are possible frequencies of this current? (A) 0 Hz (dc), 60 Hz, 100 kHz, and 1 GHz. (B) 0 Hz (dc), 60 Hz, and 100 kHz. (C) 60 Hz and 100 kHz. (D) 60 Hz, 100 kHz, and 1 GHz. (E) 100 kHz and 1 GHz. (F) 1 GHz.
circular wire loop of radius a = 30 cm in free space carries a time-harmonic current whose amplitude significantly varies along the loop. Which of the following are possible frequencies of this current? (A) 0 Hz (dc), 60 Hz, 100 kHz, and 1 GHz. (B) 0 Hz (dc), 60 Hz, and 100 kHz. (C) 60 Hz and 100 kHz. (D) 60 Hz, 100 kHz, and 1 GHz. (E) 100 kHz and 1 GHz. (F) 1 GHz.
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Transcribed Image Text:QUESTION 8.20 Change of current amplitude along a wire loop. A
circular wire loop of radius a = 30 cm in free space carries a time-harmonic current
whose amplitude significantly varies along the loop. Which of the following are
possible frequencies of this current?
(A) 0 Hz (dc), 60 Hz, 100 kHz, and 1 GHz.
(B) 0 Hz (dc), 60 Hz, and 100 kHz.
(C) 60 Hz and 100 kHz.
(D) 60 Hz, 100 kHz, and 1 GHz.
(E) 100 kHz and 1 GHz.
(F) 1 GHz.
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