# What transformers have more loops in their primary coils than in their secondary coils?

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## What transformers have fewer loops in their primary coils than in their secondary coils?

That would be a step-up transformer. Conversely, if the secondary has fewer loops than the primary, the output from the secondary will be lower voltage than the input voltage to the primary — a step-down transformer.

## Which type of transformer has more turns on the secondary coil than on the primary coil?

If the secondary coil has more turns than the primary coil then the output voltage is bigger than the input voltage. We call this a step up transformer.

## Which transformer is used to change 25kv to 250kv?

Transformers only function using (direct/alternating) current. than the number of turns in the secondary coil. A (step-up/step-down) transformer is used to change 25 kV to 250 kV. A (step-up/step-down) transformer is fixed in a radio.

## Why are the primary and secondary coils of a transformer wrapped around the same closed loop of iron?

“Both coils are wrapped around the same core so that nearly all of the magnetic flux created by the primary passes through the secondary coil, and thus induces current in the secondary when the current in the primary changes.”

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## Which is true about a transformer that has fewer secondary turns than primary turns?

Question: Which is true about a transformer that has fewer secondary turns than primary turns? The secondary current is less than the primary current, and the equivalent resistance is greater than the actual resistance.

## What is NP and NS in transformer?

In a transformer Np / Ns is called the voltage ratio. … This is called a step-down transformer as the voltage is reduced. If Ns is greater than Np then Vs is greater than Vp. The voltage from primary to secondary increases and this is called a step-up transformer.