* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Document
Index of electronics articles wikipedia , lookup
Spark-gap transmitter wikipedia , lookup
Negative resistance wikipedia , lookup
Immunity-aware programming wikipedia , lookup
Integrating ADC wikipedia , lookup
Josephson voltage standard wikipedia , lookup
Valve RF amplifier wikipedia , lookup
Operational amplifier wikipedia , lookup
Schmitt trigger wikipedia , lookup
RLC circuit wikipedia , lookup
Voltage regulator wikipedia , lookup
Two-port network wikipedia , lookup
Power electronics wikipedia , lookup
Electrical ballast wikipedia , lookup
Opto-isolator wikipedia , lookup
Power MOSFET wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Switched-mode power supply wikipedia , lookup
Current source wikipedia , lookup
Surge protector wikipedia , lookup
Current mirror wikipedia , lookup
RAVINDRA COLLEGE OF ENGINEERING FOR WOMEN Year & Semester: SET-1 Nandikotkur Road, Kurnool – 518 002, A.P. I MID EXAMINATIONS DATE:30.08.2016 II B.Tech – I SEM Branch: EEE TIME: 20 MIN ELECTRICAL CIRCUITS - II Name of the Subject: Max.Marks: 10M Roll No.: 1) If resistors 4Ω, 6 Ω, and 8 Ω are connected in parallel______ resistor has max power a) 4 Ω resistor (b) 6 Ω resistor (c) 8 Ω resistor (d) equal in all the resistors 2) If readings of two watt meters W1 and W2 then total real power is a) W1+W2 (b) W1-W2 (c) 1.732(W1-W2) (d) 1.732(W1+W2) 3) If two voltage sources are connected in series, the equivalent voltage source is a) V1+V2 (b)V1-V2 (c) V1=V2 (d) both a & b 4) The power can be calculated as ________ [ ] 2 a) VI (b) I R (c) V2 / R (d) all of the above 5) Inductor is used to store _________ energy [ ] a) electro static (b) electromagnetic (c) both a & b (d) none of the above 6) LT of Sinwt = _______________ 7) In the loop analysis while applying the KVL, current sources are _______ a) considered (b) neglect (c) both (d) none 8) The off diagonal elements of bus incidence Matrix a) 1 b) -1 c) Depends on direction d) None 9) The resistance of open circuit is __________ a) zero (b) infinite (c) both a & b (d) none of above 10) If three resistors are connected in series, the equivalent resistance is ____ of the resistance a)addition (b) subtract (c) both a & b (d) none 11) LT of Unit step function = ________ 12) In a basic AC generator, emf generated is according to the _______ a) ohm’s law (b) faraday’s law of electromagnetic induction c) Lenz’s law (d) Fleming’s right hand rule 13) Advantages of alternating current _________ a) simple construction (b) low cost (c) both a & b (d) none 14) The peak factor of alternating quantities defined as ratio of ______ to rms value. a) average (b)maximum (c) both a & b (d) none 15) The form factor of alternating quantities defined as ratio of rms value to _____ value a) average (b)maximum (c) both a & b (d) none 16) The rms value of an AC current or emf of a sinusoidal wave form is defined in terms of the equivalent ________ effect a) voltage (b) current (c) heating (d) power 17) If delta connection is converted to star connection, R3 is __________ 18) If 5V voltage is applied to the pure resistor 5Ω, what is I______ amps a) 5A (b) 4A (c)2A (d) 1A 19) ILL = ____ Iph in Delta connected three system 20. A DC voltage magnitude V and duration T is applied to a series combination of R and C. The max voltage developed across the capacitor is a) V(1-e-T/RC) b) VT/RC c) V d) Ve-T/RC RAVINDRA COLLEGE OF ENGINEERING FOR WOMEN Year & Semester: Name of the Subject: SET-2 Nandikotkur Road, Kurnool – 518 002, A.P. I MID EXAMINATIONS DATE:30.08.2016 II B.Tech – I SEM Branch: EEE TIME: 20 MIN ELECTRICAL CIRCUITS - II Max.Marks: 10M Roll No.: 1) In an electric circuit, if the current flows in only one path, The circuit is called a _______ a) parallel (b) series (c)series-parallel (d) compound 2) LT of Sinh wt = _______________ 3) Resistance is always measured in ____________ a) ohms (b) coulombs (c) amperes (d)henrys 4) If two voltage sources are connected in parallel, the equivalent voltage source is_______ a) V1+V2 (b) V1-V2 (c) V1=V2 (d) both a & b 5) A Ideal voltage source consists of ____________ resistance 6) Series circuit is also called as ________ 7) LT of Cos wt = _______________ 8) When the circuit is called redundant, when there is a _________ flow through resistor a) current (b) voltage (c) no current (d) no voltage 9) Current travelling from positively marked terminal, must be considered as ______ 10) If the star connection is converted into delta connection, Rca _____________ 11) Frequency as applied to an AC current of emf is the ___________ a) number of cycles per second (b) number of revolutions per second c) number of poles per minute (d) emf generated in volts per second 12) The period of an AC current of 50Hz frequency in second is __________ 13) In a circuit having only a resistance, the phase difference between the applied voltage and current is __________ degrees a) 0 (b)90 (c) 180 (d) 270 14) In a pure inductive circuit the phase angle is _______ a) 90 leading (b) zero (c) 90 lagging (d) 180 15) The phase is measured with respect to ______ direction a) positive (b) negative (c) reference (d) none of the above 16) In an series circuit, if the difference between XL and Xc increases, then the total a) Impedance reduces (b) impedance increases c) Resistance increases (d) impedance remains unchanged 17) If readings of two watt meters W1 and W2 then total reactive power is a) W1+W2 (b) W1-W2 (c) 1.732(W1-W2) (d) 1.732(W1+W2) 18. A DC voltage magnitude V and duration T is applied to a series combination of R and L. The max voltage developed across the capacitor is a) V(1-e-T/RC) b) VT/RC c) V d) Ve-T/RC 19) Capacitor is used to store _________ energy a) electrostatic (b) electromagnetic (c) both a & b (d) none of the above 20) ILL = ____ Iph in Star connected three system RAVINDRA COLLEGE OF ENGINEERING FOR WOMEN Year & Semester: Name of the Subject: SET-3 Nandikotkur Road, Kurnool – 518 002, A.P. I MID EXAMINATIONS DATE:30.08.2016 II B.Tech – I SEM Branch: EEE TIME: 20 MIN ELECTRICAL CIRCUITS - II Max.Marks: 10M Roll No.: 1. A tree has [ ] a) a closed path b) no closed paths c) Depends on circuit d) none 2. A DC voltage magnitude V and duration T is applied to a series combination of R and C. The max current in the circuit is a) V(1-e-T/RC) b) VT/RC c) V d) Ve-T/RC 3) If two voltage sources V1 & V2 with internal resistance R are connected in series, the equivalent voltage source is a) V1+V2 (b)V1-V2 (c) V1=V2 (d) both a & b 4) The Apparent power can be calculated in DC circuit’s ________ [ ] 2 2 a) VI (b) I R (c) V / R (d) all of the above 5) Inductor is used to store _________ energy [ ] a) electro static (b) electromagnetic (c) both a & b (d) none of the above 6) If readings of two watt meters W1=50 and W2 = 150 then total real power is ______ 7) The diagonal elements of bus incidence Matrix a) 1 b) -1 c) Depends on direction d) None 8) ILT {w/(s2 +w2 } = _____________ a) Sinwt b) Sinhwt c) Coshwt d) coswt 9) Solution of 1st order DE, D+2 = 10 is _________ 10) An alternating current is periodically changes________ in a) Magnitude (b) direction (c) both a & b (d) none 11) LT of Unit step function = ________ 12) In a basic AC generator, emf generated is according to the _______ a) ohm’s law (b) faraday’s law of electromagnetic induction c) Lenz’s law (d) Fleming’s right hand rule 13) Advantages of alternating current _________ a) simple construction (b) low cost (c) both a & b (d) none 14) An AC voltage is applied to capacitor then its stored energy in the form of [ ] a) electro static (b) electromagnetic (c) both a & b (d) none of the above 15) Angle between any two phase in two phase system is ______ a) 0 b) 90 c) 120 d) 180 16) VLL = ____ Vph in Star connected three system 17) The resistance of such short circuit is __________ [ ] a) zero (b) infinite (c) both a & b (d) none of the above 2 2 18) ILT {s/(s -w } = _____________ 19) A Ideal voltage source consists of ____________ resistance 20) If readings of two watt meters W1 and W2 then total power factor is _______ RAVINDRA COLLEGE OF ENGINEERING FOR WOMEN Year & Semester: SET-4 Nandikotkur Road, Kurnool – 518 002, A.P. I MID EXAMINATIONS DATE:30.08.2016 II B.Tech – I SEM Branch: EEE TIME: 20 MIN ELECTRICAL CIRCUITS - II Name of the Subject: Max.Marks: 10M Roll No.: 1. If a network contains B branches, N nodes, then the number of mesh current equations are _________ 2. A practical voltage source consists of ____________ resistance 3. In a cutest matrix number of cut-sets equals to___________ 4. Define a planar graph? 5. Number of loops in a tie-set matrix will be equal to_________ 6. Oriented graph is the graph along with the directions [TRUE/FALSE] 7. In an incidence matrix the column element value should be always zero [TRUE/FALSE] 8. In a circuit the current sources are to be open circuited always [TRUE/FALSE] 9. In a tree the number of links equals to B-(N-1) [TRUE/FALSE] 10. The number of branches in a tree equal to n-1 where n represents nodes. [TRUE/FALSE] 11. A DC voltage magnitude V and duration T is applied to a series combination of R and L. The max current in the circuit is a) V/R(1-e-T/RC) b) VT/RC c) V/R d) V/R e-T/RC 12. The off diagonal elements of element node incidence Matrix a) 1 b) -1 c) Depends on direction d) None 13) If three resisters delta connection is converted to star connection, R1 is __________ 14) LT {Exp} = _____________ 15) Angle between any two phase in three phase system is ______ a) 0 b) 90 c) 120 d) 60 16) VLL = ____ Vph in Delta connected three system 17) Capacitor acts like for the a.c. signal in the steady state a) open b)closed c) not open not close d)none. 18) ILT {w/(s2 -w2 } = _____________ 19) If readings of two watt meters W1 and W2 then total reactive power is a) W1+W2 (b) W1-W2 (c) 1.732(W1-W2) (d) 1.732(W1+W2) 20) The resistance of open circuit is __________ [ ] a) zero (b) infinite (c) both a & b (d) none of the above