Question

(3 points for each blank cell in table, 30 points total) The following diagram shows a circuit of three resistors in series connected to a 9V battery. A voltmeter measures the voltage across R1 and finds that it is 2.62V. Use the resistor color coding chart and Ohm's Law to complete the table below 2. Resistor Colors Resistance (k) Voltage Across (V) Current through (mA) Circuit Element R1 R2 R3 Total 2.62 V reen-black-red-gold red-red-red-gold brown-black-orange-gold 9V 2.62 V R1 R3 Figure 2. The following figure was created using TinkerCAD Circuits, a browser based simulator (www.tinkercad.com/circuits)

Answer 1

R_1 implies Green - Black - Red - Gold = 50 times 10^2 plusminus 5% = 5k ohm plusminus 5% R_2 implies Red - Red - Red - Gold = 22 times 10^2 plusminus 5% = 2.2k ohm plusminus 5% R_3 implies Brow Black orange Red = 10 times 10^3 plusminus 5% 10 k ohm plusminus 5% Apply KVL - IR_1 + IR_2 + IR_3 = V I(R_1 + R_2 + R_3) = 9 I(5 + 2.2 + 10) times 10^3 = 9 I = 9/17.2 mA = 0.52 mA V_2 = IR_2 = 9/17.2 times 2.2 = 1.15V V_3 = 9/17.2 times 10 = 5.23V