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The next twelve questions are about this circuit. The voltage of the battery is

ID: 1313769 • Letter: T

Question

The next twelve questions are about this circuit. The voltage of the battery is 12 V, and the values of the resistances are: R1 = 5 ohms, R2 = 10 ohms, R3 = 15 ohms, and R4 = 20 ohms.

1)  R1 and R3 are in:

parallel

series

neither

2)  R2 and R4 are in:

parallel

series

neither

3)  Compare the magnitude of the current through R2 and R3

I2 > I3

I2 = I3

I2 < I3

4)  Compare the magnitude of the voltage across R1 and R3

V1 > V3

V1 = V3

V1 < V3

5)  Compare the magnitude of the voltage across R2 and R4

V2 > V4

V2 = V4

V2 < V4

6)  Compare the magnitude of the current through R1 and R4

I1 > I4

I1 = I4

I1 < I4

7)  Calculate the total equivalent resistance of this circuit.

2.11 ohms

4.06 ohms

8.73 ohms

24.9 ohms

50.0 ohms

8)  Calculate the current going through R1.

0.34 A

0.57 A

1.58 A

2.40 A

2.74 A

9)  Calculate the current going through R2.

0.37 A

0.57 A

1.58 A

2.40 A

2.74 A

10)  Calculate the voltage drop across R3.

3.4 V

5.7 V

8.3 V

10.2 V

12 V

11)  Calculate the voltage drop across R4.

3.7 V

5.7 V

8.6 V

10.2 V

12 V

12)  Calculate the total power dissipated in this circuit.

12 W

24 W

35 W

48 W

60 W

The next three questions are about this circuit.

13)   Which one of the following is a valid Kirchhoff voltage equation for the dotted outside loop?

-E1 + I1R1 + E4 - I4R4 = 0

-E1 + I1R1 - E4 + I4R4 = 0

-E1 + I1R1 - E4 - I4R4 = 0

14)  Which one of the following is a valid Kirchhoff current equation for the above circuit.

I1 + I2 + I3 + I4 = 0

I1 - I2 + I3 + I4 = 0

I1 + I2 - I3 - I4 = 0

15)  Let E1 = 10 V, E2 = 15 V, R1 = 10 W, and R2 = 20 W. What is the magnitude of the potential difference between points A and B?

|VAB| = 2.5 volts

|VAB| = 5 volts

|VAB| = 10 volts

|VAB| = 15 volts

|VAB| = 25 volts

Explanation / Answer

13)   Which one of the following is a valid Kirchhoff voltage equation for the dotted outside loop?

-E1 + I1R1 - E4 - I4R4 = 0

14)  Which one of the following is a valid Kirchhoff current equation for the above circuit.

I1 - I2 + I3 + I4 = 0

15)  Let E1 = 10 V, E2 = 15 V, R1 = 10 W, and R2 = 20 W. What is the magnitude of the potential difference between points A and B?

5V

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