Automobile Intermittent Wiper System

The timing device in an automobile’s intermittent wiper system is based on an \(RC\) time constant and utilizes a \({{ params.C }}\rm\ \mu F\) capacitor and a variable resistor. Over what range must \(R\) be made to vary to achieve time constants from \({{ params.t1 }}\rm\ s\) to \({{ params.t2 }}\rm\ s\)?

Part 1

What must be the value of \(R\) for the time constant to be \({{ params.t1 }}\rm\ s\)?

Answer Section

Please enter in a numeric value in \(\rm\ \Omega\).

Part 2

What must be the value of \(R\) for the time constant to be \({{ params.t2 }}\rm\ s\)?

Answer Section

Please enter in a numeric value in \(\rm\ \Omega\).

Attribution

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