Electric Circuits and Networks

2.8 PROBLEMS

1. Some voltage and current variables are specified at an instant in the circuit in Fig. 2.8-1. Find the remaining variables at that instant as per the reference directions marked in Fig. 2.8-1.

    

   

    

   Fig. 2.8-1

    

2. The circuit shown in Fig. 2.8-2 is a DC circuit containing only resistors and independent sources. Some voltage and current variables are specified in the circuit. (i) Find the remaining variables with reference directions as shown in Fig. 2.8-2. (ii) Identify those elements that have to be sources. (iii) Identify those elements that can be resistors. (iv) Identify the elements that receive positive power and calculate the ...