The coupling coefficient of a perfectly coupled coil is?
Correct answer: B. 1
- A. Zero
- B. 1
- C. More than 1
- D. Infinite
Explanation
If the coefficient of coupling has value one, then it is called as the perfect coupling that is when the entire flux of one coil links the other.
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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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