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Using the picture above, as a reference, think and predict what will occur int h

ID: 585293 • Letter: U

Question

Using the picture above, as a reference, think and predict what will occur int he following scenarios.

     3.2.1 You have three resistances with different values, both setups connected to a power supply set at equal voltage.

? Which of the setups has the greater overall resistance : A or B

Explain your reasoning.

  

  3.2.2 You only have access to the set up A controls. What do you have to do, to have the same current in both setups?.    Lower Voltage of A, or Rise the voltage in B.

Explain your reasoning.

Explanation / Answer

B has a greater overall resistance as all resistance in B are in series while in A these are in parallel.

as resistance of A is less than B so for same current we have to lower the voltage of A as we can only control set up A