Eight incandescent lighting fixtures are to be installed. Each fixture is 120 volts, with a 200-watt lamp. What is the total connected load?

To determine the total connected load for eight incandescent lighting fixtures, we start by calculating the total wattage. Each fixture has a lamp that consumes 200 watts. Therefore, for eight fixtures, the total wattage is calculated by multiplying the number of fixtures by the wattage of each fixture:

Total wattage = Number of fixtures × Wattage per fixture Total wattage = 8 fixtures × 200 watts/fixture = 1600 watts

Next, to find the total connected load in amps, we can use Ohm's Law, which states that current (in amps) is equal to power (in watts) divided by voltage (in volts). The fixtures operate at 120 volts:

Total connected load (in amps) = Total wattage / Voltage Total connected load (in amps) = 1600 watts / 120 volts = 13.33 amps

Rounding off, this gives a total connected load of approximately 13.3 amps. This calculation confirms that the correct answer is 13.3 amps.

Understanding this process emphasizes the importance of knowing how to convert wattage to current for electrical installations and illustrates how the total load can be assessed based on the individual consumption of connected devices.