1- The equivalent inductance measured between the terminals 1 and 2 for the circuit shown in Fig.1. (a) LI+L2+M (b) LI+L2-M (c) L1+L2+2M (d) L1+L2-2M (e) None of the above 2 m L1 M Fig.1 L2

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1- The equivalent inductance measured between the terminals 1 and 2 for the
circuit shown in Fig.1.
(a) LI+L2+M
(b) LI+L2-M
(c) L1+L2+2M
(d) L1+L2-2M
(e) None of the above
(a) 5sin(2t+53.1°)
(b) 5sin(2t -53.1°)
(c) 25sin(2t+53.1°)
(d) 25sin(2t -53.1°)
(e) None of the above
Fig.1
2-The circuit shown in Fig.2, with R=1/3 , L=1/4 H, C=3F has input voltage
v(t)=sin2t. The resulting current i(t) is
v(t)
i(t)
3- Power factor of the following circuit will be zero.
(a) Resistance
(b) Inductance
(c) Capacitance
(d) Both (b) and (c)
(c) Susceptance, inductance
(d) Conductance, Susceptance
m
L1
R
M
5- In an AC circuit (sine wave) with R and L in series
(a) Voltage across R and L 180° out of face
(b) The voltage across R lags the voltage across L by 90°.
(c) The voltage across R leads the voltage across L by 90°
(d) Voltage across R and L are in phase
mi
L2
Fig 2
4- Real part of admittance is........... and the imaginary part is..........
(a) Impedance, resistance
(b) Resistance, impedance
U
Transcribed Image Text:1- The equivalent inductance measured between the terminals 1 and 2 for the circuit shown in Fig.1. (a) LI+L2+M (b) LI+L2-M (c) L1+L2+2M (d) L1+L2-2M (e) None of the above (a) 5sin(2t+53.1°) (b) 5sin(2t -53.1°) (c) 25sin(2t+53.1°) (d) 25sin(2t -53.1°) (e) None of the above Fig.1 2-The circuit shown in Fig.2, with R=1/3 , L=1/4 H, C=3F has input voltage v(t)=sin2t. The resulting current i(t) is v(t) i(t) 3- Power factor of the following circuit will be zero. (a) Resistance (b) Inductance (c) Capacitance (d) Both (b) and (c) (c) Susceptance, inductance (d) Conductance, Susceptance m L1 R M 5- In an AC circuit (sine wave) with R and L in series (a) Voltage across R and L 180° out of face (b) The voltage across R lags the voltage across L by 90°. (c) The voltage across R leads the voltage across L by 90° (d) Voltage across R and L are in phase mi L2 Fig 2 4- Real part of admittance is........... and the imaginary part is.......... (a) Impedance, resistance (b) Resistance, impedance U
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