The batteries shown in the circuit in the figure (Figure 1) have negligibly smal

Question

The batteries shown in the circuit in the figure (Figure 1) have negligibly small internal resistances.

Part A

Find the current through the 30.0 ? resistor.

Part B

Find the current through the 20.0 ? resistor.

Part C

Find the current through the 10.0V battery.

The batteries shown in the circuit in the figure (Figure 1) have negligibly small internal resistances. Part A Find the current through the 30.0 ? resistor. Part B Find the current through the 20.0 ? resistor. Part C Find the current through the 10.0V battery.

Explanation / Answer

(a)
i of 30 Ohm = V/R = 10 V / 30 Ohm = 1/3 A

(b)
i of 20 Ohm = V/R = (10 - 5) V / 20 Ohm = 1/4 A

(c)
i of 10 battery = (i of 30 Ohm) + (i of 20 Ohm) = (1/3 + 1/4) A = 7/12 A

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