How does increasing the number of resistors in a parallel branch change the total resistance of the system?  a Decreases the total resistance of the circuit  b Increases the total resistance of the circuit  c Increases the total resistance of the circuit if the resistance of the added resistor is larger than the resistors already in the branch  d Decreases the total resistance of the circuit if the resistance of the added resistor is smaller than the resistors already in the branch

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