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Asked Dec 31, 2019
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How do the input and output powers in a transformer compare? State the assumption made?

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Expert Answer

Step 1

For an ideal transformer the input power is equal to the output power, but in an actual transformer, the output power is less than the input power.

 

 In a step down transformer the output voltage is less than the input voltage. If voltage is increased in a step down transformer the current will decrease to keep the power constant since power is the product current and voltage.

Step 2

In a step down transformer the relation between o...

Physics homework question answer, step 2, image 1
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