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Parallel Circuits - General Questions (1)

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Parallel Circuits - General Questions

1. 

In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

A. 48 mA
B. 12 mA
C. 0 A
D. 3 mA

Answer: Option B

Explanation:

No answer description available for this question. 
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2. 

Six resistors are in parallel. The two lowest-value resistors are both 1.2 k. The total resistance

A. is less than 6 kΩ
B. is greater than 1.2 kΩ
C. is less than 1.2 kΩ
D. is less than 600

Answer: Option D

Explanation:

No answer description available for this question. 
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3. 

If one of the resistors in a parallel circuit is removed, the total resistance

A. decreases
B. increases
C. remains the same
D. doubles

Answer: Option B

Explanation:

No answer description available for this question. 
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4. 

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

A. 60 mA
B. 15 mA
C. 135 mA
D. 31.25 mA

Answer: Option D

Explanation:

No answer description available for this question. 
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5. 

There is a total of 800 mA of current into four parallel resistors. The currents through three of the resistors are 40 mA, 70 mA, and 200 mA. The current through the fourth resistor is

A. 490 mA
B. 800 mA
C. 310 mA
D. 0 A

Answer: Option A

Explanation:

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6. 

Three 47  resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately

A. 2.3 A
B. 780 mA
C. 47 mA
D. 7.06 A

Answer: Option D

Explanation:

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7. 

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

A. 220 Ω
B. 470 Ω
C. 560 Ω
D. impossible to determine without knowing the voltage

Answer: Option C

Explanation:

No answer description available for this question.
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8. 

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

A. 200 mA
B. 540 mA
C. 1.24 A
D. 900 mA

Answer: Option C

Explanation:

No answer description available for this question. 
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