What is the paper amps value for a 5000-watt fresnel lamp?

Prepare for the GFA Lighting and Electric Test with flashcards and multiple choice questions, each question enriched with hints and explanations. Ensure success on your exam!

Multiple Choice

What is the paper amps value for a 5000-watt fresnel lamp?

Explanation:
This question tests how to estimate the current draw of a high-wattage lighting instrument using I = P/V, with the exam using a standard “paper amps” convention. In these problems, a nominal 100 V supply is used to simplify circuit sizing. So the current is 5000 W divided by 100 V, which equals 50 A. This 50 A figure is the practical sizing value for wiring and fuses in the context of the test. If you used the lamp’s actual supply voltage, the current would be different—about 41.7 A at 120 V or about 20.8 A at 240 V—but the 100 V basis gives 50 A for this problem.

This question tests how to estimate the current draw of a high-wattage lighting instrument using I = P/V, with the exam using a standard “paper amps” convention. In these problems, a nominal 100 V supply is used to simplify circuit sizing. So the current is 5000 W divided by 100 V, which equals 50 A. This 50 A figure is the practical sizing value for wiring and fuses in the context of the test. If you used the lamp’s actual supply voltage, the current would be different—about 41.7 A at 120 V or about 20.8 A at 240 V—but the 100 V basis gives 50 A for this problem.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy