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GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Circuit and System Lab Question Bank, 3rd Semester Ques1: State Ohm’s law and its limitations. Ques 2: State Kirchhoff’s voltage law? Ques3: State Kirchhoff’s Current law? Ques 4: Name different network elements? Ques 5: What is meant by Electric Circuits? Ques 6: Write Kirchhoff’s law mathematically. Ques 7: Define an ideal voltage source? Ques 8: Define an ideal current source? Ques 9. Draw the symbolic representation of the voltage source and current Source? Ques 10: Explain how voltage source with a source resistance can be converted into an equivalent current source? Ques 11: Define the dependent source of a circuit? Ques 12: Define the current division rule? Ques 13. Draw the V-I relationship of an ideal voltage source? Ques 14: Write the classification of circuit elements? Ques 15: Write the voltage division rule? Ques 16: Define R.M.S value? Ques17: State the advantages of sinusoidal alternating quantity? Ques 17. How are the following affected by change of frequency? a. Resistance b. Inductive reactance c. Capacitive reactance Ques 18: What is admittance? What are its components? Ques 19: Short circuit voltage is equal to……………… Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 20: Why open circuit current is equal to zero? Ques 21: Why ammeter is connected in series? Ques 22: Why voltmeter is connected in parallel Ques23: The difference in theoretical and practical values of any experiment is due to…….. Ques 24: What do you mean by series and parallel connection? What is the significance of series and parallel connection? Ques 25: What are one port and two port networks? Ques 26: List the various parameter sets that are used to model a two port Networks? Ques 27: What are the dependent and independent variables in case of Z parameter? Ques 28: Write the equation of Z parameter? Ques 29: Draw the equivalent circuit of Z parameter? Ques 30: What is the condition of Reciprocity in case of Z parameter? Ques 31: Derive condition for symmetry of open circuit impedance parameter? Ques 32: What is Reverse transfer impedance and forward transfer impedance? Ques 33: What is input driving point impedance and output driving point impedance? Ques 34. The following readings were obtained experimentally for unknown two-port network. V1 I V2 I1 I2 Output open 100V 60V 10A 0 Input open 30V 40V 0 3A Compute the Z-parameters. Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 35:Draw the Z-parameter equivalent of above prob. Ques 36: What are the dependent and independent variables in case of Y parameter? Ques 37: Write the equation of Y parameter? Ques 38: Draw the equivalent circuit of Y parameter? Ques 39: What is the condition of Reciprocity in case of Y parameter? Ques 40: Derive condition for symmetry of short impedance parameter? Ques 41: What is Reverse transfer admittance and forward transfer admittance? Ques 42: What is input driving point admittance and output driving point admittance? Ques 43. In a two port network on performing short circuit test the following results were obtained. Test – 1 : I1 = 1 mA Test – 2 : I1 = - 1 mA I2 = - 0.5 mA I2 = 10 mA V1= 25V V2= 50V V2 = 0V V1 = 0V Determine the Y – Parameters. Ques 44:Draw the Y-parameter equivalent of above prob.(8). Ques 45: The z- parameters of two port network are Z11 = Z22 = 3ohm, Z12 = Z21 = 1ohm Determine the Y parameter. Ques 46: The admittance parameters matrix of a two port network is given as Y11= 1mho, Y 22 =2 mho, Y21= Y12= 1 mho Determine the parameter Z22 of the two port network. Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 48: What are the dependent and independent variables in case of ABCD parameter? Ques 49: Write the equation of ABCD parameter? Ques 50:Why the equivalent circuit of ABCD parameter is not possible? Ques 51: Why ABCD parameter is known as Transmission parameter? Ques 52: What is the condition of Reciprocity in case of ABCD parameter? Ques 53: Derive condition for symmetry of Transmission parameter? Ques 54: Derive relationship between Y and ABCD parameter? Ques 55: Derive ABCD parameter in terms of Z parameter? Ques 56. In a two port network on performing short circuit test the following results were obtained. Test – 1 : I1 = 1 mA Test – 2 : I1 = - 1 mA I2 = - 0.5 mA I2 = 10 mA V1= 25V V2= 50V V2 = 0V V1 = 0V Determine the ABCB Parameters. Ques 57: The z- parameters of two port network are Z11 = Z22 = 3ohm, Z12 = Z21 = 1ohm Determine the ABCD parameter. Ques58: Determine T parameters in terms of open circuit and short circuit impedance? Ques 59: Explain T- transformation for two port networks? Ques 60: What are the dependent and independent variables in case of abcd parameter? Ques 61: Write the equation of abcd parameter? Ques 62:Why the equivalent circuit of abcd parameter is not possible? Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 63: What is the condition of Reciprocity in case of abcd parameter? Ques 64: Derive condition for symmetry of inverse Transmission parameter? Ques 65: Derive relationship between ABCD and abcd parameter? Ques 66: Derive abcd parameter in terms of Y parameter? Ques 67: Define input and output impedance ? Ques 68: Define image impedance? Ques 69: What are the dependent and independent variables in case of series -series connection? Ques 70: What are condition for series interconnection of two port network? Ques 71: Draw series-series interconnection of two identical T network ? Ques 72: The two port network are connected in series.prove that overall parameter are the sum of corresponding individual parameters? Ques 73: The impedance matrix a two port network is, Z = 2 -1 -1 3 If two such identical Network are connected in series what will be the overall Z parameters of the parallel combination Ques 74: What are the dependent and independent variables in case of parallel -parallel connection? Ques 75: What are condition for parallel interconnection of two port network? Ques 76: Draw parallel-parallel interconnection of two identical network ? Ques 77: The two port network are connected in parallel .prove that overall parameter are the sum of corresponding individual parameters? Ques 78: The admittance matrix a two port network is, Y = 2 -2 -3 1 If two such identical Network are connected in parallel what will be the overall Y parameters of the parallel combination Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 79: State Thevenin Theorem for ac source? Ques 80: What are the application of Thevenin Theorem? Ques 81: What are the limitation of Theenin Theorem? Ques 82: Why Thevenin theorem is not applicable to non –linear elements? Ques 83: Can thevenin theorem be paalied to unilateral devices? Ques 84 . Thevenin’s equivalent circuit consists of (a) series combination of RTh, Eth and RL. (b) Eth and RTh in series. (c) Eth and RTh in parallel. (d) parallel combination of RTh, Eth and RL. Ques 85: For finding RTh (a) load resistance is removed from the network. (b) load resistance is removed and voltage sources are replaced by their internal resistances. (c) load is removed and its terminals are short circuit (d) voltage and current of the circuit is measure Ques89: RTh is the resistance between the terminals in the network, where from (a) load has been remove (b) voltage source has been remove (c) current source has been remove (d) none of these. Ques 90. In thevenin’s theorem for calculating Thevenins voltage that is Eth, load terminals are (a) left open. (b) shorted together. Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester (c) remain connected with load (d) connected with the internal resistance of the source. Ques 91. Which of the following is true for Thevenin’s theorem? (a) Any two terminals network can be replaced by a current source, current output , IN in parallel with a resistance, RN. (b) Any two terminals network can be replaced by a current source of current output, IN in series with a resistance, RN. (c) Any two terminals network can be replaced by a voltage source of voltage Eth in series with a resistance RTh or RN. (d) none of these. Ques 92. Thevenin’s theorem can be applied to network with (a) (a)(c) and (d)(c) sources. (b) (a)(c) sources only (c) (d)(c) sources only. (d) any of these. Ques 93: Norton’s equivalent circuit consists of (a) Current source in series with RN. (b) Voltage source in series with RN. (c) Current source in parallel with RN. (d) Current source, RN and RL, all in series. Ques 94: RN is (a) less than RTh. (b) greater than RTh. (c) equal to RTh. (d) the total resistance of the network. Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 95: In Norton’s theorem for calculation of Norton’s current IN, load terminals are (a) left open. (b) shorted together. (c) remain connected with loa(d) (d) connected with the internal resistance of the source. Ques 96. Norton’s current, IN is equal to (a) the current flowing through loa(d) (b) the current flowing through short circuited load terminals. (c) the current flowing through the Norton’s resistance, RN. (d) none of these. Ques 97: Which of the following theorem uses current generator? (a) superposition theorem. (b) maximum power transfer theorem. (c) Thevenin’s theorem. (d) Norton’s theorem. Ques 98: State Superposition Theorem for ac source? Ques 99: What are the applications of Superposition Theorem? Ques 100: What are the limitations of Superposition Theorem? Ques101: Why Superposition theorem is not applicable to non –linear elements? Ques102: What are the conditions under which suoerposition theorem can be applied? Ques 103: What do you mean by Linear Dependent Sources? Ques 104: What is the difference between active and passive elements? Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY CIRCUIT AND SYSTEM 3rd Semester Ques 105: State Maximum power transfer Theorem for ac source? Ques 106: What are the applications of Maximum Power transfer Theorem? Ques 107: What are the limitations of Maximum power transfer Theorem? Ques 108: What characteristic an electric circuit exhibits under Maximum power transfer theorem?? Ques109: What are the conditions under which maximum power transfer theorem can be applied? Ques 110: Draw and explain the graph of maximum power transfer theorem? Ques 111: State Reciprocity Theorem for ac source? Ques 112: Verify Reciprocity theorem with the help of suitable example? Ques 113: What are the applications Reciprocity Theorem? Ques 114: What are the limitations of Reciprocity Theorem? Ques 115: Why Reciprocity theorem is not applicable to network consisting of any Time-varying elements Ques 116: Why Reciprocity theorem is not applicable to network consisting of any dependent source even if it is linear? Compiled By: Prachi, Maninder Kaur, Deepali, Madhu, Praveen