In the course of the procedure, you should have found the voltage drop between t

Question

In the course of the procedure, you should have found the voltage drop between the points labeled c and e (either algebraically or by using a voltmeter). What was the current through and voltage across the 3 resistor, respectively?

Toward the end of this lab, you investigated the following circuit. 10 d 3 40 2 n 4 n 120 12 V In the course of the procedure, you should have found the voltage drop between the points labeled c and e (either algebraically or by using a voltmeter). What was the current through and voltage across the 3Q resistor, respectively? O 1 A O 2 O 4A O 1 V O 3 V O 2A O 4 V O 3 A O 12 A O 12

Explanation / Answer

resistance between a and c

1/Rac = 1/(4+2) + 1/12

Rac = 4 ohms

resistance between c and e

1/Rce = 1/(1+3) + 1/4

Rce = 2 ohms

Rae = Rac+Rce = 6 ohms

total crrent I = E/Rae = 12/6 = 2 A

current through 3 ohms i = I*Rce/(1+3) = 2*2/4 = 1 A   <<<----answer

V = i*3 = 3 v <<<<----answer

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