The ohmmeter in Figure P 3.6-12 measures the equivalent resistance Req of the resistor
Chapter 3, Problem P 3.6-12(choose chapter or problem)
The ohmmeter in Figure P 3.6-12 measures the equivalent resistance \(R_{\mathrm{eq}}\) of the resistor circuit. The value of the equivalent resistance \(R_{\text {eq }}\) depends on the value of the resistance R.
(a) Determine the value of the equivalent resistance \(R_{\text {eq }}\) when \(R=9 \Omega\).
(b) Determine the value of the resistance R required to cause the equivalent resistance to be \(R_{\text {eq }}=12 \Omega\).
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