Consider the network of four resistors shown in the diagram, where R 1 = 41.0? ,

Question

Consider the network of four resistors shown in the diagram, where R1 = 41.0? , R2 = 53.0? , R3 = 28.0? , and R4 = 128? . The resistors are connected to a constant voltage of magnitude V. (Figure 1)

Find the equivalent resistance RA of the resistor network.

Express your answer in ohms.

Two resistors of resistance R5 = 79.0? and R6 = 31.0? are added to the network, and an additional resistor of resistance R7 = 47.0? is connected by a switch, as shown in the diagram..(Figure 2) Find the equivalent resistance of the new resistor network when the switch is open RB.

Express your answer in ohms.

Find the equivalent resistance RC of the resistor network described in Part B when the switch is closed.

Express your answer in ohms.

Explanation / Answer

R1 R2 are in parallel

so equivalent = 23.1 ohm

Now r3 and r4 and 23.1 are in series

so equivalent rest = 179.1ohm

in question only 1 figure is available so cant solve part 2 and 3

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