Three identical resistors have an equivalent resistance of 65 Ω when connected in parallel. Part A What is their equivalent resistance when connected in series? Express your answer to two significant figures and include the appropriate units.
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Ответ:
590 ohms
Explanation:
Let the resistance of each resistor be 'R'.
Given:
Equivalent resistance of the three resistors in parallel
Plug in the given values and solve for 'R'. This gives,
Now, the equivalent resistance of the three identical resistors in series is the sum of each of the resistors. Therefore,
As the question asks to round off to two significant figures, so we add 1 to the second significant figure because the number next to 8 is 5 which is greater than or equal to 5. So, the number becomes 590.
Hence, the equivalent resistance in series is 590 ohms.
Ответ:
Photosynthesis takes in the carbon dioxide produced by living things and puts oxygen into the atmosphere.