A u = 40cos(100πt +π2) V
B u = 40√2cos(100πt + π/2) V
C u = 40cos(100πt) V
D u = 40√2cos(100pt + π) V
A ZL = 100 Ω; u = 200cos(100πt - π/2) V
B ZL= 100 Ω; u = 200cos(100πt + π2) V
C ZL = 100 Ω; u = 200cos(100πt) V
D ZL= 200 Ω; u = 200cos(100πt + π/2) V
A i = 25cos(100 π t + π /2) A
B i = 2,5cos(100π t + π /6) A
C i = 2,5 cos(100 π t + 5 π /6) A
D i = 0,25 cos(100 π t + 5 π /6) A
A \(i = 2,4\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 250W\;\)
B \(i = 2,5\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 250W\)
C \(i = 2\cos \left( {100\pi t + \pi } \right)A;{\text{ }}P = 250W\;\)
D \(i = 2,5\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 62,5W\;\)
A i = 10cos(100 π t + 5 π /6) A
B i = 10 √2 cos(100 π t + π /6) A
C i = 10 √2 cos(100 π t - 5 π /6) A
D i = 10 √2 cos(100 π t + 5 π /6) A
A i = 2cos (100 π t + π /3) (A)
B i = 2cos (100 π t + π /6) (A)
C i = 2cos (100 π t - π /6) (A)
D i = 2 cos (100 π t - π /3) (A)
A u = 20 √2 cos(100 π t + π) V
B u = 20 √2 cos100 π t V
C u = 20 √2 cos(100 π t + π /2) V
D u = 20 √2 cos(100 π t - π /2) V
A u = U0cos(100 π t + π/4) V
B u = U0cos(120 π t + π/4) V
C u = U0cos(50 π t + π/4) V
D u=U0cos(60 π t + π/4 ) V
A \({{{I_0}} \over \omega }\,\,\left( C \right)\)
B \({{2{I_0}} \over \omega }\,\,\left( C \right)\)
C \({{{I_0}} \over {2\omega }}\,\,\left( C \right)\)
D 0
A $\frac{\sqrt2 \pi I_0}{ \omega }$
B 0
C $\frac{\pi I_0}{\sqrt2 \omega }$
D $\frac{2I_0}{\omega }$
A -3,25.10-3 C.
B 4,03.10-3 C.
C 2,53.10-3 C
D -4,59.10-3 C
A i = 4 √2cos(100πt + π/6) A
B i = 5cos(100πt + π/6) A
C i = 4 √2cos(100πt - π/6) A
D i = 5cos(100πt - π/6)A
A i = 2√3cos(100πt - 5π/6) A
B i = 2√3cos(100πt + π/6) A
C i = 2√2cos(100πt + π/6) A
D i = 2√2cos(100πt -π/6) A
A 60 Ω; π/4 rad
B 60√2 Ω; π/4 rad
C 60√2 Ω; - π/4 rad
D 60 Ω; - π/4 rad
A 50 Ω
B 40 Ω
C 60 Ω
D 45 Ω
A -π /4
B π /4
C π /6
D -π /6
A 50F
B 50.10-3 F
C 10-3 /5π F
D Không đáp án
A Z = 60 Ω; ZC =18 Ω
B Z = 60 Ω; ZC =12 Ω
C Z = 50 Ω; Z= =15 Ω
D Z = 70 Ω; ZC =28 Ω
A R = 100 Ω; L = 1/π H
B R = 100√3 Ω; L = 2/π H
C R = 100 Ω; L = 2/π H
D R = 100√3Ω; L = 1/π H
A 40 Ω
B 60 Ω
C 50 Ω
D 100 Ω
A 70 hoặc 130 Ω
B 100 Ω
C 60 Ω; 140 Ω
D không có đáp án.
A 100 Hz
B 50 Hz
C 40 Hz
D 60 Hz
A 12,5 Ω
B 12,5√2 Ω
C 12,5√3 Ω
D 125√3 Ω
A 300 Ω
B 400 Ω
C 500 Ω
D 600W
A C = 10-4/2πF
B C = 5.10-3/πF
C C = 10-3/5πF
D Không có đáp án
A Z = 30Ω;R =10Ω;L = 0,2H
B Z = 40Ω;R = 20Ω;L = 0,11H
C Z = 50Ω;R =30Ω;L = 0,51H
D Z = 48Ω;R = 27Ω;L = 0,31H
A -250Ω
B 250Ω
C -350Ω
D 350Ω
A R, C
B R, L
C L, C
D Cả 3 đều sai
A 25 Hz
B 100Hz
C 300Hz
D 500Hz
A u = 40cos(100πt +π2) V
B u = 40√2cos(100πt + π/2) V
C u = 40cos(100πt) V
D u = 40√2cos(100pt + π) V
A ZL = 100 Ω; u = 200cos(100πt - π/2) V
B ZL= 100 Ω; u = 200cos(100πt + π2) V
C ZL = 100 Ω; u = 200cos(100πt) V
D ZL= 200 Ω; u = 200cos(100πt + π/2) V
A i = 25cos(100 π t + π /2) A
B i = 2,5cos(100π t + π /6) A
C i = 2,5 cos(100 π t + 5 π /6) A
D i = 0,25 cos(100 π t + 5 π /6) A
A \(i = 2,4\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 250W\;\)
B \(i = 2,5\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 250W\)
C \(i = 2\cos \left( {100\pi t + \pi } \right)A;{\text{ }}P = 250W\;\)
D \(i = 2,5\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 62,5W\;\)
A i = 10cos(100 π t + 5 π /6) A
B i = 10 √2 cos(100 π t + π /6) A
C i = 10 √2 cos(100 π t - 5 π /6) A
D i = 10 √2 cos(100 π t + 5 π /6) A
A i = 2cos (100 π t + π /3) (A)
B i = 2cos (100 π t + π /6) (A)
C i = 2cos (100 π t - π /6) (A)
D i = 2 cos (100 π t - π /3) (A)
A u = 20 √2 cos(100 π t + π) V
B u = 20 √2 cos100 π t V
C u = 20 √2 cos(100 π t + π /2) V
D u = 20 √2 cos(100 π t - π /2) V
A u = U0cos(100 π t + π/4) V
B u = U0cos(120 π t + π/4) V
C u = U0cos(50 π t + π/4) V
D u=U0cos(60 π t + π/4 ) V
A \({{{I_0}} \over \omega }\,\,\left( C \right)\)
B \({{2{I_0}} \over \omega }\,\,\left( C \right)\)
C \({{{I_0}} \over {2\omega }}\,\,\left( C \right)\)
D 0
A $\frac{\sqrt2 \pi I_0}{ \omega }$
B 0
C $\frac{\pi I_0}{\sqrt2 \omega }$
D $\frac{2I_0}{\omega }$
A -3,25.10-3 C.
B 4,03.10-3 C.
C 2,53.10-3 C
D -4,59.10-3 C
A i = 4 √2cos(100πt + π/6) A
B i = 5cos(100πt + π/6) A
C i = 4 √2cos(100πt - π/6) A
D i = 5cos(100πt - π/6)A
A i = 2√3cos(100πt - 5π/6) A
B i = 2√3cos(100πt + π/6) A
C i = 2√2cos(100πt + π/6) A
D i = 2√2cos(100πt -π/6) A
A 60 Ω; π/4 rad
B 60√2 Ω; π/4 rad
C 60√2 Ω; - π/4 rad
D 60 Ω; - π/4 rad
A 50 Ω
B 40 Ω
C 60 Ω
D 45 Ω
A -π /4
B π /4
C π /6
D -π /6
A 50F
B 50.10-3 F
C 10-3 /5π F
D Không đáp án
A Z = 60 Ω; ZC =18 Ω
B Z = 60 Ω; ZC =12 Ω
C Z = 50 Ω; Z= =15 Ω
D Z = 70 Ω; ZC =28 Ω
A R = 100 Ω; L = 1/π H
B R = 100√3 Ω; L = 2/π H
C R = 100 Ω; L = 2/π H
D R = 100√3Ω; L = 1/π H
A 40 Ω
B 60 Ω
C 50 Ω
D 100 Ω
A 70 hoặc 130 Ω
B 100 Ω
C 60 Ω; 140 Ω
D không có đáp án.
A 100 Hz
B 50 Hz
C 40 Hz
D 60 Hz
A 12,5 Ω
B 12,5√2 Ω
C 12,5√3 Ω
D 125√3 Ω
A 300 Ω
B 400 Ω
C 500 Ω
D 600W
A C = 10-4/2πF
B C = 5.10-3/πF
C C = 10-3/5πF
D Không có đáp án
A Z = 30Ω;R =10Ω;L = 0,2H
B Z = 40Ω;R = 20Ω;L = 0,11H
C Z = 50Ω;R =30Ω;L = 0,51H
D Z = 48Ω;R = 27Ω;L = 0,31H
A -250Ω
B 250Ω
C -350Ω
D 350Ω
A R, C
B R, L
C L, C
D Cả 3 đều sai
A 25 Hz
B 100Hz
C 300Hz
D 500Hz
A u = 40cos(100πt +π2) V
B u = 40√2cos(100πt + π/2) V
C u = 40cos(100πt) V
D u = 40√2cos(100pt + π) V
A ZL = 100 Ω; u = 200cos(100πt - π/2) V
B ZL= 100 Ω; u = 200cos(100πt + π2) V
C ZL = 100 Ω; u = 200cos(100πt) V
D ZL= 200 Ω; u = 200cos(100πt + π/2) V
A i = 25cos(100 π t + π /2) A
B i = 2,5cos(100π t + π /6) A
C i = 2,5 cos(100 π t + 5 π /6) A
D i = 0,25 cos(100 π t + 5 π /6) A
A \(i = 2,4\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 250W\;\)
B \(i = 2,5\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 250W\)
C \(i = 2\cos \left( {100\pi t + \pi } \right)A;{\text{ }}P = 250W\;\)
D \(i = 2,5\cos \left( {100\pi t - \pi } \right)A;{\text{ }}P = 62,5W\;\)
A i = 10cos(100 π t + 5 π /6) A
B i = 10 √2 cos(100 π t + π /6) A
C i = 10 √2 cos(100 π t - 5 π /6) A
D i = 10 √2 cos(100 π t + 5 π /6) A
A i = 2cos (100 π t + π /3) (A)
B i = 2cos (100 π t + π /6) (A)
C i = 2cos (100 π t - π /6) (A)
D i = 2 cos (100 π t - π /3) (A)
A u = 20 √2 cos(100 π t + π) V
B u = 20 √2 cos100 π t V
C u = 20 √2 cos(100 π t + π /2) V
D u = 20 √2 cos(100 π t - π /2) V
A u = U0cos(100 π t + π/4) V
B u = U0cos(120 π t + π/4) V
C u = U0cos(50 π t + π/4) V
D u=U0cos(60 π t + π/4 ) V
A \({{{I_0}} \over \omega }\,\,\left( C \right)\)
B \({{2{I_0}} \over \omega }\,\,\left( C \right)\)
C \({{{I_0}} \over {2\omega }}\,\,\left( C \right)\)
D 0
A $\frac{\sqrt2 \pi I_0}{ \omega }$
B 0
C $\frac{\pi I_0}{\sqrt2 \omega }$
D $\frac{2I_0}{\omega }$
A -3,25.10-3 C.
B 4,03.10-3 C.
C 2,53.10-3 C
D -4,59.10-3 C
A i = 4 √2cos(100πt + π/6) A
B i = 5cos(100πt + π/6) A
C i = 4 √2cos(100πt - π/6) A
D i = 5cos(100πt - π/6)A
A i = 2√3cos(100πt - 5π/6) A
B i = 2√3cos(100πt + π/6) A
C i = 2√2cos(100πt + π/6) A
D i = 2√2cos(100πt -π/6) A
A 60 Ω; π/4 rad
B 60√2 Ω; π/4 rad
C 60√2 Ω; - π/4 rad
D 60 Ω; - π/4 rad
A 50 Ω
B 40 Ω
C 60 Ω
D 45 Ω
A -π /4
B π /4
C π /6
D -π /6
A 50F
B 50.10-3 F
C 10-3 /5π F
D Không đáp án
A Z = 60 Ω; ZC =18 Ω
B Z = 60 Ω; ZC =12 Ω
C Z = 50 Ω; Z= =15 Ω
D Z = 70 Ω; ZC =28 Ω
A R = 100 Ω; L = 1/π H
B R = 100√3 Ω; L = 2/π H
C R = 100 Ω; L = 2/π H
D R = 100√3Ω; L = 1/π H
A 40 Ω
B 60 Ω
C 50 Ω
D 100 Ω
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