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Physics, 22.02.2020 01:23 dxnimxriee
A small immersion heater can be used in a car to heat a cup of water for coffee or tea. If the heater can heat 120 mL of water from 25 ∘C to 95 ∘C in 7.5 min . Assume the manufacturer's claim of 45 % efficiency.
Approximately how much current does it draw from the car's 12-V battery?
What is its resistance?
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