Question: The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is____________?

• 1. 200 mA
• 2. 540 mA
• 3. 1.24 A
• 4. 900 mA

Question: Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is______________?

• 1. 60 mA
• 2. 15 mA
• 3. 135 mA
• 4. 31.25 mA

Question: Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance______________?

• 1. is less than 6 kΩ
• 2. is greater than 1.2 kΩ
• 3. is less than 1.2 kΩ
• 4. is less than 600 Ω

Question: Six resistors are in parallel. The two lowest-value resistors are both 1.2 kΩ. The total resistance_____________?

• 1. is less than 6 kΩ
• 2. is greater than 1.2 kΩ
• 3. is less than 1.2 kΩ
• 4. is less than 600 Ω

Question: The following resistors are in parallel across a voltage source: 220Ω , 470Ω , and 560Ω . The resistor with the least current is______________?

• 1. 220 Ω
• 2. 470 Ω
• 3. 560 Ω
• 4. impossible to determine without knowing the voltage

Question: In a certain three-branch parallel circuit, R1 has 12 mA through it, R2 has 15 mA through it, and R3 has 25 mA through it. After measuring a total of 27 mA, you can say that____________?

• 1. R3 is open
• 2. R1 is open
• 3. R2 is open
• 4. the circuit is operating properly

Question: Five 100 Ω resistors are connected in parallel. If one resistor is removed, the total resistance is______________?

• 1. 25 Ω
• 2. 500 Ω
• 3. 100 Ω
• 4. 20 Ω

Question: The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω that makes up part of the parallel circuit is approximately_______________?

• 1. 22 mA
• 2. 120 mA
• 3. 220 mA
• 4. 50 mA

Question: A 470 Ω resistor, a 220 Ω resistor, and a 100 Ω resistor are all in parallel. The total resistance is approximately________________?

• 1. 790 Ω
• 2. 470 Ω
• 3. 60 Ω
• 4. 30 Ω

Question: Four equal-value resistors are connected in parallel. Ten volts are applied across the parallel circuit and 2 mA are measured from the source. The value of each resistor is______________?

• 1. 12.5 Ω
• 2. 200 Ω
• 3. 20 KΩ
• 4. 50 Ω