Electromagnetic Induction and Alternating Current 6 Question 6
6. An AC voltage source of variable angular frequency
(2010)
(a) the bulb glows dimmer
(b) the bulb glows brighter
(c) total impedance of the circuit is unchanged
(d) total impedance of the circuit increases
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Answer:
Correct Answer: 6. (b)
Solution:
- Impedance,
