An ideal transformer has 60 turns on its primary coil and 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary, what voltage and current are present in the secondary?

Respuesta :

Explanation:

It is given that,

Number of turns in primary coil, [tex]N_p=60[/tex]

Number of turns in secondary coil, [tex]N_s=300[/tex]

Voltage in primary coil, [tex]V_p=120\ V[/tex]

Current in primary coil, [tex]I_p=2\ A[/tex]

We have to find the voltage and current in the secondary coli. Firstly calculating the voltage in secondary coil as :

[tex]\dfrac{N_p}{N_s}=\dfrac{V_p}{V_s}[/tex]

[tex]\dfrac{60}{300}=\dfrac{120}{V_s}[/tex]

[tex]V_s=720\ Volts[/tex]

Now, calculating the current present in the secondary coil as :

[tex]\dfrac{N_p}{N_s}=\dfrac{I_s}{I_p}[/tex]

[tex]\dfrac{60}{300}=\dfrac{I_s}{2\ A}[/tex]

[tex]I_s=0.4\ A[/tex]

Hence, this is the required solution.