Calculate the currents in each resistor of the figure.(Figure 1) Part A Calculat

Question

Calculate the currents in each resistor of the figure.(Figure 1)

Part A

Calculate the current in 25 ? resistor.

Express your answer to two significant figures and include the appropriate units.

Part B

Calculate the current in 120 ? resistor.

Express your answer to two significant figures and include the appropriate units.

Part C

Calculate the current in 64 ? resistor.

Express your answer to two significant figures and include the appropriate units.

Part D

Calculate the current in 110 ? resistor.

Express your answer to two significant figures and include the appropriate units.

Part E

Calculate the current in 82 ? resistor.

Explanation / Answer

Combine the 120? and 82? resistors into one R? = 202? resistor. Combine the 25? and 110? resistors into one R? = 135? resistor located where the 25? resistor was. Call the remaining 64? resistor as R?, just for kicks. Set the (-) terminal of the +3V to GND (0V.) Swap the series positions of V? = -58V supply and R?.

Circuit is much simpler, now. There's only one unknown node value! Call it Vx. And only three remaining resistors.

Using nodal analysis on that node:

Vx ? R? + Vx ? R? + Vx ? R? = -58 ? R? + 3V ? R? + GND ? R?
Vx ? 202? + Vx ? 135? + Vx ? 64? = -58 ? 202? + 3V ? 135? + 0V ? 64?
Vx?(

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