Resistor Circuit Reduction#

A car battery charger circuit contains resistors with resistances $R_1=params.r1\mathrm{\Omega }$, $R_2=params.r2\mathrm{\Omega }$, $R_3=params.r3\mathrm{\Omega }$, $R_4=params.r4\mathrm{\Omega }$, $R_5=params.r5\mathrm{\Omega }$. The circuit is reduced in the steps shown in the figure below.

Part 1#

Select the steps in reducing the circuit that are allowed.

Answer Section#

• $(a)$ to $(b)$

• $(b)$ to $(c)$

• $(c)$ to $(d)$

Part 2#

If step (a) to (b) is allowed, calculate the value of $R_6$. Otherwise enter “-1”.

Answer Section#

Please enter an answer in $\mathrm{\Omega }$.

Part 3#

If step (b) to (c) is allowed, calculate the value of $R_7$. Otherwise enter “-1”.

Answer Section#

Please enter an answer in $\mathrm{\Omega }$.

Part 4#

If step (c) to (d) is allowed, calculate the value of $R_8$. Otherwise enter “-1”.

Answer Section#

Please enter an answer in $\mathrm{\Omega }$.

Part 5#

Once the circuit is as simplified as possible, what would you do to find the current through $R_5$?

Answer Section#

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.