A Step-Up Transformer Doubles a Primary Voltage 110 V (Ac)

question 14

Multiple Choice

A step-up transformer doubles a primary voltage 110 V (ac) . What is the ratio of the number of turns in its primary coil to those in the secondary coil?

• A) 1:4
• B) 4:1
• C) 2:1
• D) 1:2
• E) 1:8

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