ELECTRICAL ENGINEERING DEPARTMENT CALIFORNIA POLYTECHNIC STATE UNIVERSITY EE 112 EXAM 1 FALL 2003 NAME:…………………………….. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PROBLEM #1 The current through a 5 kΩ resistor is given in the figure below. a) How much total energy must a source deliver over the time interval t = 0 to t = 2 s? b) How much total charge is transferred in the same period of time?PROBLEM #2 An electric heater is connected to a constant 250 V voltage source and absorbs 1000 W. Subsequently, this heater is connected to 210 V. What power does it absorb from the 210 V source? What is the resistance of the heater?PROBLEM #3 Find the power delivered by each independent source and the power absorbed by each resistor in the following