For an ideal step-up transformer Ps ------- Pp.
Correct answer: A. Equal to
- A. Equal to
- B. Greater than
- C. Less than
- D. None of these
Explanation
For an ideal step-up transformer, Ps is equal to Pp as there are no power losses.
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Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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