Answer 2_8_6
Formula first . Watch the bear traps: C = 10 × 10-6 F R = 1000 W
1000 = 1 ¸ (2 × 3.142 × f × 10 × 10-6) P
f = 1 ¸ (2 × 3.142 × 1000 × 10 × 10-6) = 15 Hz P P
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