# Starter Motor Resistance#

An automobile starter motor has an equivalent resistance of 0.070 $$\rm\ \Omega$$ and is supplied by a 14.00 $$\rm\ V$$ battery with a 0.010 $$\rm\ \Omega$$ internal resistance.

## Part 1#

What is the current to the motor?

## Part 2#

What voltage is applied to the motor?

## Part 3#

What power is supplied to the motor?

## Part 4#

When the battery connections are corroded, its internal resistance increases by $${{ params.R_add }}\rm\ \Omega$$. Significant problems are caused by even small amounts of unwanted resistance in low-voltage, high-current applications.

What is the new current to the motor?

## Part 5#

What is the new voltage applied to the motor?

## Part 6#

What is the new power supplied to the motor?