NPTEL Basic Electrical Circuits Week 7 Assignment Answers 2024

By Sanket

NPTEL Basic Electrical Circuits Week 7 Assignment Answers 2024

1. Find the z parameters from the following circuit. What will be the value of π11 + π12

• 2π β¦
• 5π β¦
• 1π β¦
• 5π β¦
`Answer :- For Answers Click Here `

2. From the below given matrices, one is the Z-matrix and other is the Y-matrix of the same two port network. Now identify the matrices as Z or Y.

• A is Y-matrix, B is Z-matrix
• A is Z-matrix, B is Y-matrix
• A and B cannot be Y, Z matrices of any 2-port network
• Cannot be determined
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3. From the below circuit, find the value of β 11 πππ β22

• 5π β¦ and 0. 1π β¦β1
• 15π β¦ and 1π β¦ β1
• 10π β¦ and 5π β¦ β1
• 1π β¦ and 0. 2π β¦β1
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4. Find the sum of all the Y-parameters of the circuit shown below –

• 2.5 S
• 1.5 S
`Answer :- `

5. The Z-parameter matrix of the following circuit is given below. Find the power delivered to the 50Ξ© resistor

• 9.45 W
• 8.45 W
• 10.45 W
• 8 W
`Answer :- `

6. In the circuit given below, find the n for which the network will be reciprocal

• -0.01
• 0.01
• -0.05
• -0.02
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7. For the below given circuit,find out the h parameters.Calculate the value of h11+h12+h21+h22 given RA = RB = RC = 1Ξ©.

• 2+k
• 2-k
• k+3
• k-3
`Answer :- `

8. Find the sum of all the elements in the Y matrix of the following two port networks. Then determine the current in the 4Ξ© load that is connected to the output port when a 2A source is applied at the input port.

• 2.33 S ,-0.18 A
• 5.24 S,-0.35 A
• 3.63 S,0.18 A
• 1.32 S , 0.35 A
`Answer :- `

9. Find the thevenin equivalent (thevenin voltage and thevenin resistance) of the below circuit with respect to port 2 (considering ZL as the load resistance ) given the z parameters of the below given circuit.

• Vth = 1.67 V, Rth = 7.33Ξ©
• Vth = 2.33 V, Rth = 10.45Ξ©
• Vth = 5.12 V, Rth = 4.33Ξ©
• Vth = 1.67 V, Rth = 8.35Ξ©
`Answer :- `

10. Find the sum of all the z-parameters.

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11. The network of the following figure contains both a dependent current source and a dependent voltage source. Determine sum of all the y and z parameters (Donβt worry about the units of y and z parameters)-

• -1/3
• 1/3
• 0
• 1
`Answer :- `

12. Two passive two port networks are connected in cascade as shown in Figure. A voltage source is connected at port 1.
Given:

A1 ,B1 ,C1 ,D1 ,A2 ,B2 ,C2 and D2 are generalized circuit constants. If the Thevenin equivalent circuit at port 3 consists of a voltage source VT and ZT connected in series. Then calculate (VT / ZT) in terms of voltage source V1 and generalized circuit constants.(Note: ZT should only be in terms of generalized circuit constants any other terms should not be there and in VT voltage V1 will occur along with the circuit constants.) –

• V 1 / (A 1 B 2 + B 1 D 2 )
• V 1 / (A 1 A 2 + B 1D 2 )
• V 1 / (A 1 B 2 – B 1D 2 )
• V 1 / (A 1 A 2 – B 1D 2 )
`Answer :- For Answers Click Here `