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7. Three resistances of 12 QM each are connected in parallel. What is the equivalent resistance? 8. Two resistances, one 62 Q and the other 88 0, are connected in parallel. The resistors are then connected to a 12-V battery. a. What is the equivalent resistance of the parallel combination? b. What is the current through each resistor? 9. A 35-0, 55-0, and 85-0 Mresistor are connected in parallel. The resistors are then connected to a 35-V battery. a. What is the equivalent resistance of the parallel combination? b. What is the current through each resistor? 10. Resistors Ri, Ra, and Rs have resistances of 15.0 0, 9.0 0, and 8.0 Q Mrespectively. Ri and Re are connected in series, and their combination is in parallel with R3 to form a load across a 6.0-V battery. a. Draw the circuit diagram. b. What is the total resistance of the load? c. What is the current in Ra? d. What is the potential difference across Ra