An automobile starter motor has an equivalent resistance of 0.0460 and is suppli

Question

An automobile starter motor has an equivalent resistance of 0.0460 and is supplied by a 12.0 V battery with a 0.0080 internal resistance.

d) Repeat these calculations for when the battery connections are corroded and add 0.0900 to the circuit. (Significant problems are caused by even small amounts of unwanted resistance in low-voltage, high-current applications.)

Current I have 83.3A thats right

Voltage I have 3.81 V thats right

Please find the power in kW because I get 3.17 but the system marks it as a wrong answer

Explanation / Answer

Power dissipated in 0.046 ohm resistor=i*i*r

=83.3*83.3*0.046=0.319 kW

Total power dissipated=83.3*83.3*(0.046+0.008+0.09)=999. 200=0.99 kW

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