Part A Part A What is its resistance? A 290 W electric heater is designed to operate from a 12.0 V car battery. Express your answer in ohms to three significant figures. Assume that R1 = 49 $2 , R2 = 74 0 , Rs = 20 02 , R = Find the equivalent resistance of the combination shown in (Figure 1). 78 32 , Rs = 20 $2 , and Re = 29 0. Express your answer in ohms to two significant figures. R= Reg = Submit Request Answer Submit Request Answer Part B Part B What current does it draw? Find the equivalent resistance of the combination shown in (Figure 2). Express your answer in amperes to three significant figures. Figure Express your answer in ohms to two significant figures. A$ 0 ? 25 0 12 0 Reg I = 5.02 Submit Request Answer Part C Part C If the battery voltage drops to 11 V, what power does the heater take? (Assume that the resistance is constant.) R, Find the equivalent resistance of the combination shown in (Figure 3). Express your answer in watts to two significant figures. Assume that R1 = 49 02 . R2 = 74 0 , R3 = 20 02 , R4 = Part C IVO AEQ 78 0, Rs = 20 $2 , and Re = 29 0. Find the equivalent resistance of the combination shown in (Figure 3) P = W Express your answer in ohms to two significant figures. Req What is the equivalent resistance of the following combinations? Submit Request Answer Re - 40Q Figure Part D & - 40 R 25 Find the equivalent resistance of the combination shown in (Figure 4). Express your answer in ohms to two significant figures. R- 40g WWW Www R- 100 12 12 R= 104 5.02 Reg Submit Request Answer 45 chm 18 ohms 4:64 ohms R