The circuit shown has three identical resistors in series with device for measur

Question

The circuit shown has three identical resistors in series with device for measuring current (an ammeter). The value of the emf shown is 9.39 V, and each resistor has a value of . . .

(SEE PICTURE! NEED ALL THREE PARTS IN CORRECT UNITS! KEEP GETTING WRONG ANSWER!)

The circuit shown has three identical resistors in series with device for measuring current (an ammeter). The value of the emf shown is 9.39 V, and each resistor has a value of 1.80 × 102 . W-W Answer the three questions, using three significant digits. Part A: What is the total resistance of this circuit (Rea)? Number Req Part B: What is the value of the current (I) flowing out of the emf? Number Part C: What is the value of the voltage drop (AV) across the second resistor? Number

Explanation / Answer

a) all the three resistances are in series

Rnet = R1 + R2 +R3 = 180+180+180 = 540 ohm

b) current flowing through the circuit = V/R = 9.39/540 = 0.01738 A

c) volatge drop across second resistor = IR = 0.01738*180 = 3.13 V

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