题目内容
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[单选题]
RL串联交流电路,电压U=35V,电阻R=3Ω,感抗XL=4Ω,则电路有功功率P=()W。
A.245.00
B.147.00
C.196.00
D.75.00
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A.245.00
B.147.00
C.196.00
D.75.00
A.100.00
B.75.00
C.196.00
D.147.00
A.147.00
B.196.00
C.75.00
D.100.00
A.2√2sin(1000t-53.1°)
B.2√2sin(1000t-36.9°)
C.2√2sin(1000t)
D.2√2sin(1000t-90°)
A.100√2sin(1000t+53.1°)
B.100√2sin(1000t+36.9°)
C.60√2sin(1000t)
D.80√2sin(1000t+90°)