A 60-volt electric time clock circuit with several clocks connected in parallel has a 2-wire line voltage drop of 12.5 volts when the circuit is closed. Using Ohm's law, find the total resistance of the 2-wire line if a current of 10 amps exists. Carry the answer to two decimal places.

Fill in the blank(s) with the appropriate word(s).


1.25

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What is the purpose of the check valves that are installed in parallel with the metering devices on heat pumps?

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