Astep-down transformer has a 120 vrms primary voltage applied. a 12 vrms voltage is measured at the secondary. assuming the transformer can be considered ideal, determine the turns ratio, n. if a 1  load is attached to the secondary of this transformer, what is the rms load current? what is the rms primary current?

(a). The rms load current is 1.08 A.

(b). The rms primary current is 0.108 A.

Explanation:

Given that,

Primary voltage = 120

Secondary voltage = 12

Load = 10 ohm

We need to calculate the number of turns in primary and secondary coil

Using formula of voltage

Put the value into the formula

We need to calculate the resistance

Using formula of resistance

Put the value into the formula

We need to calculate the current in primary coil

Using formula of current

We need  to calculate the current in secondary coil

Using formula of current for secondary coil

Put the value into the formula

Hence, (a). The rms load current is 1.08 A.

(b). The rms primary current is 0.108 A.

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