wo point charges (C₁ and C₂) are fixed as shown in the setup below. ow consider a third test charge with charge -q that you can place nywhere you want in regions A, B, C, or D. In which region could you ace the test charge so that the net force on the test charge is zero? C₁ A-29 B C(9) D A. Region A B. Region B C. Region C D. Region D

1.4 The charge cycle shown in Figure PL4 is an example of a three-rate charge. The current is held constant at 30 mA for 6 h. Then it is switched to 20 mA for the next 3 h. Find: a. The total charge transferred to the battery. b. The energy transferred to the battery.Page 58 Hint: Recall that energy w is the integral of power, or P = dw/dr. 1.7 V 1.2 V 9.6V 05 V 30 mA 20 mA Figure P14 3h 3h 6h 6h 9h 7

In the circuit shown in Figure 2–41 (p. 94), the current I is 34.28 mA. What is the voltage drop across the diode? What is its dc resistance?

Calculate the equivalent resistances Rin of the following circuits. (The resistance value of the diodes in the conduction will be 0, the resistance value of the diodes in the insulation will be taken as infinity. R1=10ohm