Series-Parallel Resistors

Find the equivalent resistance between points A and B. Resistors are connected as follows: R1 = 10 Ω and R2 = 20 Ω are in parallel. This combination is in series with R3 = 30 Ω. Then in parallel with R4 = 40 Ω. The whole thing is in series with R5 = 50 Ω.

• 69.13 Ω
• 66.13 Ω
• 61.13 Ω
• 63.13 Ω

A 10 V battery supplies power to two resistors in series. One resistor is 5 Ω, and the other is unknown. If the power dissipated in the 5 Ω resistor is 5 W, what is the value of the unknown resistor?

• 5 Ω
• 6 Ω

• 4 Ω
• 3 Ω

Find the equivalent resistance between the two terminals.

• 8.5 ohms

• 7.5 ohms

• 6.5 ohms

• 5.5 ohms

Find the equivalent resistance between A and B

• 1 ohm
• 3 ohms
• 6 ohms
• 2 ohms

Given the following resistors in a circuit : R1 = 5 Ω, R2 = 10 Ω, R3 = 20 Ω, R4 = 15 Ω. R5 = 30 Ω. R1 and R2 are in series. Their combination is in parallel with R3. This entire group is in series with R4, and the result is in parallel with R4. Find the total equivalent resistance of the network.

• 8.2 Ω

• 25.2 Ω

• 35.2 Ω

• 13.2 Ω

Find the equivalent resistance between A and B.

• 7.0 Ω

• 6.0 Ω

• 9.0 Ω

• 8.0 Ω

A circuit consists of three resistors connected as follows: R1=4Ω and R2 = 6Ω are connected in parallel. This parallel combination is connected in series with R3 = 10Ω. A 24 V battery is connected across the entire circuit. Find the power dissipated individually by each resistor.

A 84 V battery is connected to the following circuit : R1 = 12.06 Ω and R2 = 11.05 Ω are in parallel. This combination is in series with R3 = 22 Ω What is the power dissipated by R3?

• 231.3 W

• 221.3 W

• 211.3 W

• 201.3 W

Three resistors R1 = 24.07 Ω, R2 = 10.71Ω and R3 = 15.64 are connected in parallel across a 56 V battery. Find the total current drawn from the battery.

• 11.13 A

• 15.32 A
• 5.67 A
• 10.94 A

The substation bus bar is made up of 2 inches round copper bars 20ft. long. What is the resistance of each bar if resistivity is 1.724x10⁻⁶?