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aivan3 [116]
3 years ago
13

You are testing a vehicle fuel gauge float. The float pulls 40mA when the tank is 100% full and 2mA when the tank is empty. Assu

ming that the float's resistance scales linearly between 0% and 100% full, what current draw in milliamps should we see if we set the float to 49% full? Give your answer to the tenth of a milliamp.
Physics
1 answer:
Ad libitum [116K]3 years ago
3 0

Answer:

I=20.6mA

Explanation:

the relation between the current and the tank percentage is linear:

\frac{40mA-2mA}{100-0} = \frac{I-2mA}{49-0}

then:

I=49*38/100+2=20.6mA

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