4.61 a) Use source transformations to find the current i, PSPICE in the circuit in Fig. P4.61. MULTISEM b) Verify your solution by using the node-voltage method to find i Figure P4.61 150 w 25 mA 330 02 3270 (25 mA Problems 141 PSPICE MULTISER 4.93 a) Use the principle of superposition to find the voltage v in the circuit of Fig. P4.93. b) Find the power dissipated in the 100 resistor. Figure P4.93 4A 5.0 5 222 w 110 V 10 2120