Labels:text | diagram | font | black and white OCR: 1. Change Ry by clicking R the Randomize button. C 2. Balance the bridge by Rx adjusting R1 , R2, and R3 so that the galvanometer G reads 0 current when the on/off button is pressed. Wait for display. + må 3. Calculate Rx = R3. R1 R2 V 4. Click Show Rx to check.