In Many Places 24 V AC Has Been Popular as a Power

question 16

Multiple Choice

In many places 24 V AC has been popular as a power source but now 12 V and 24 V DC is increasing in popularity because

• A) There is more energy in DC.
• B) It is easier to back-up DC with battery.
• C) There is less power loss in cables with DC.
• D) There is less risk for surge with DC.

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