A parallel circuit has five ½ W (0,5W each) resistors with the following values: R1 = 1.8k ohms R2 = 2.2k ohms R3 = 3.3k ohms R4 = 3.9k ohms R5 = 4.7 k ohms As you increase the voltage across the parallel circuit, the total current slowly increases. Suddenly, the total current drops to a lower value. 1) Excluding a power supply failure, what happened? Include the schematic. 2) What is the maximum voltage you should have applied? Show all your work and formula. 3) Specifically, what must be done to repair the circuit and how can this situation be avoided in the future?
A parallel circuit has five ½ W (0,5W each) resistors with the following values: R1 = 1.8k ohms R2 = 2.2k ohms R3 = 3.3k ohms R4 = 3.9k ohms R5 = 4.7 k ohms As you increase the voltage across the parallel circuit, the total current slowly increases. Suddenly, the total current drops to a lower value. 1) Excluding a power supply failure, what happened? Include the schematic. 2) What is the maximum voltage you should have applied? Show all your work and formula. 3) Specifically, what must be done to repair the circuit and how can this situation be avoided in the future?
Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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A parallel circuit has five ½ W (0.5W each) resistors with the following values:
R1 = 1.8k ohms
R2 = 2.2k ohms
R3 = 3.3k ohms
R4 = 3.9k ohms
R5 = 4.7 k ohms
As you increase the voltage across the parallel circuit, the total current slowly increases.
Suddenly, the total current drops to a lower value.
1) Excluding a power supply failure, what happened? Include the schematic.
2) What is the maximum voltage you should have applied? Show all your work and
formula.
3) Specifically, what must be done to repair the circuit and how can this situation be
avoided in the future?
4) There are 250 mA in a parallel circuit with a total resistance of 1.5k Q. The current must
be increased by 25%. How does the resistance need to be adjusted in the parallel to
accomplish this?
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