Electrical (A6)Câu 67 / 120
Two 6-ohm resistors connected in parallel produce a total resistance of:
a.12 ohms
b.6 ohms
c.3 ohms
d.0.5 ohms
Giải thích
For two equal resistors in parallel, total resistance is half of one resistor, so two 6-ohm resistors equal 3 ohms. Parallel resistance is always lower than the smallest branch. This principle explains why adding parallel loads increases total current draw.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
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