Kirchhoff's Current Law

Use Kirchhoff's current law to determine the unknown currents in the circuit in Figure 2.7 (attached). Thanks.

Supplying and Dissipating Power

Determine which elements in the circuit of Figure 2.10 (attached file) are supplying power and which are dissipating power. Also, determine the amount of power dissipated and supplied.

Simple Circuit

In the circuit of Figure 2.17 (see attached file), if v1=v/4 and the power delivered by the source is 40 mW, find R, v, v1, and i. Given: R1=kilo-ohms, R2=10 kilo-ohms, and R3=12 kilo-ohms. Please show your steps. Thanks.

Sign Convention

Refer to Figure 2.16 (see attached file): a) Find the total power supplied by the ideal source. b) Find the power dissipated and lost within the nonideal source. c) What is the power supplied by the source to the circuit as modeled by the load resistance? d) Plot the terminal voltage and power supplied to the circuit as a function of current. Repeat I_T= 0,5,10,20,30 A. V_S= 12 V and R_S= 0.3 Ohms

Wheatstone Bridge

Find equivalent resistance of circuit (see attachment) by using the Tee-Pi conversion. See attached file for full problem description.