Consider the circuit shown in (Figure 1) . The batteries have emfs of E1=9.0V an

Question

Consider the circuit shown in (Figure 1) . The batteries have emfs of E1=9.0V and E2=12.0V and the resistors have values of R1=22?, R2=65?, and R3=32?.

Part A

Determine the magnitudes of the currents in each resistor shown in the figure. Ignore internal resistance of the batteries.

Express your answers using two significant figures separated by commas.

Part B

Determine the directions of the currents in each resistor. Ignore internal resistance of the batteries.

Determine the directions of the currents in each resistor. Ignore internal resistance of the batteries.

Determine the directions of the currents in each resistor. Ignore internal resistance of the batteries.

Explanation / Answer

E1 = 9, E2 = 13

R1 = 22, R2 = 65, R3 =32
i3 through 32 going up .
i1 is coming down and
i2 = i1 + i3
=======================
13 = 65 i1 + 97 i3
9 = 87 i1 + 65 i3
Solving
Current through R1 = 0.0066A
Current through R3 = 0.129A
Current through R2 = 0.1356 A

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