A transformer consists of 275 primary windings and 808 secondary windings. Part

Question

A transformer consists of 275 primary windings and 808 secondary windings.

Part A

If the potential difference across the primary coil is 21.5 V , what is the voltage across the secondary coil?

Express your answer in volts to three significant figures.

SubmitRequest Answer

Part B

If the potential difference across the primary coil is 21.5 V , what is the current in the secondary coil if it is connected across a 105 resistor?

Express your answer in amperes to three significant figures.

A transformer consists of 275 primary windings and 808 secondary windings.

Part A

If the potential difference across the primary coil is 21.5 V , what is the voltage across the secondary coil?

Express your answer in volts to three significant figures.

V2 =   V  

SubmitRequest Answer

Part B

If the potential difference across the primary coil is 21.5 V , what is the current in the secondary coil if it is connected across a 105 resistor?

Express your answer in amperes to three significant figures.

I =   A  

Explanation / Answer

given

Part A )

Np = 275 primary windings

and

Ns = 808 secondary windings

Vp = 21.5 volts

using equation

Vs / Vp = Ns / Np

Vs = 808 X 21.5 / 275

Vs = 63.17 Ohm.

the voltage across the secondary coil is Vs = 63.17 Ohm.

Part B )

given

Rs = 105

we have Ohm's Law Is = Vs / Rs

= 63.17 / 105

Is = 0.6016 A

the current in the secondary coil if it is connected across a 105 resistor is Is = 0.6016 A

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