The answer should be B :)
Resistance in wires is transformed into thermal energy, you can observe this fact when you are charging your phone and feel the wire is quite hot. That is a result of the resistance.
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i did it and got it right guys i hope it helps a lot
Answer:1.81
(a) Explanation:the turn ratio= input voltage÷output voltage.
400÷220=1.81.
Don't know how to solve b part...
Answer:
the first one is a group 1 and the second one is d all of the above
Explanation: