Starter Motor Resistance#

An automobile starter motor has an equivalent resistance of 0.090 \(\rm\ \Omega\) and is supplied by a 13.00 \(\rm\ V\) battery with a 0.006 \(\rm\ \Omega\) internal resistance.

Part 1#

What is the current to the motor?

Answer Section#

Please enter a numeric value.

Part 2#

What voltage is applied to the motor?

Answer Section#

Please enter a numeric value.

Part 3#

What power is supplied to the motor?

Answer Section#

Please enter a numeric value.

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?

Answer Section#

Please enter a numeric value.

Part 5#

What is the new voltage applied to the motor?

Answer Section#

Please enter a numeric value.

Part 6#

What is the new power supplied to the motor?

Answer Section#

Please enter a numeric value.

Attribution#

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.