If the ammeter in the Wheatstone bridge of Figure P31.78 measures zero current when the resistance (R_{text

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If the ammeter in the Wheatstone bridge of Figure P31.78 measures zero current when the resistance \(R_{\text {var }}\) of the variable resistor is set to \(185 \Omega\), what is the current \(I_{\mathrm{L}}\) through the left side of the bridge?

Data from Figure P31.78

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