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The figure shows the illustration of a simple transformer. What is P,Q and R?
P:
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Q:
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R:
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What is the function of a step-down transformer?
Which of the following is true regarding a step-up transformer?
What is the suitable material to be used as the core and coil in a transformer?
The frequency of the alternating current in the secondary coil is always __________ the frequency of the current in the primary coil.
What is the function of the core of a transformer?
Why does a transformer have a core made of iron?