Which of the following statements about fluorescent lamps is correct? a. Fluorescent lamps have positive electrical resistance, meaning that the resistance increases with the flow of current. b. Fluorescent lamps can be operated without a ballast because they self-limit their current consumption. c. The ballast in fluorescent and HID lamps serves as a transformer to boost voltage and a choke to limit the flow of current. d. Fluorescent lamps don’t need a higher voltage to initiate the electric arc. e. Once an arc is struck in a fluorescent lamp, the ionized mercury vapor reduces its conductivity, limiting the flow of current.
Which of the following statements about fluorescent lamps is correct? a. Fluorescent lamps have positive electrical resistance, meaning that the resistance increases with the flow of current. b. Fluorescent lamps can be operated without a ballast because they self-limit their current consumption. c. The ballast in fluorescent and HID lamps serves as a transformer to boost voltage and a choke to limit the flow of current. d. Fluorescent lamps don’t need a higher voltage to initiate the electric arc. e. Once an arc is struck in a fluorescent lamp, the ionized mercury vapor reduces its conductivity, limiting the flow of current.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter11: Conduction In Liquids And Gases
Section: Chapter Questions
Problem 9RQ: What determines the thickness of the coating during an electroplating process?
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Question
Which of the following statements about fluorescent lamps is correct?
a.
Fluorescent lamps have positive electrical resistance, meaning that the resistance increases with the flow of current.
b.
Fluorescent lamps can be operated without a ballast because they self-limit their current consumption.
c.
The ballast in fluorescent and HID lamps serves as a transformer to boost voltage and a choke to limit the flow of current.
d.
Fluorescent lamps don’t need a higher voltage to initiate the electric arc.
e.
Once an arc is struck in a fluorescent lamp, the ionized mercury vapor reduces its conductivity, limiting the flow of current.
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