Physics

Physics, 19.11.2021 16:40, kseniyayakimno

Hai bóng đèn Đ1 (220V – 25W) và Đ2 (220V – 100W) khi sáng bình thường thì A. cường độ dòng điện qua bóng đèn Đ1 lớn gấp hai lần cường độ dòng điện qua bóng đèn Đ2.
B. cường độ dòng điện qua bóng đèn Đ2 lớn gấp bốn lần cường độ dòng điện qua bóng đèn Đ1.
C. cường độ dòng điện qua bóng đèn Đ1 bằng cường độ dòng điện qua bóng đèn Đ2.
D. Điện trở của bóng đèn Đ2 lớn gấp bốn lần điện trở của bóng đèn Đ1.

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Hai bóng đèn Đ1 (220V – 25W) và Đ2 (220V – 100W) khi sáng bình thường thì A. cường độ dòng điện qu...

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