Al-Huda Science Academy has designed Class 12 MCQs Physics Chapter 16 Alternating Current for board, MdCat and ECAT preparation. These MCQs help students to prepare for their entry test papers.
Chapter 16 Alternating Current includes topics:
Alternating current Peak to Peak value Phase lag and Phase lead AC through capacitor AC through inductor Impedance Power in AC circuit Parallel resonance circuit Series resonance circuit Electromagnetic waves MCQs Physics Chapter 16 Alternating Current
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#1. In case of inductor voltage leads the current by:#2. In case of capacitor current leads the voltage by:#4. Power factor in case of ideal resistor is:
#7. The current which changes its polarity in equal intervals of time is:#9. When frequency is high then XL will be:#10. Alternating current frequency used in USA is:
#14. When frequency of AC source is very large then:
#16. The voltage supplied at domestic level in Pakistan is:#18. In Resonance condition:#19. P = Irms x Vrms cosθ, here cosθ is:
#21. Unit of impedance is:#22. Parallel resonance circuit is also called as:#23. Series resonance circuit is also called as:#24. The voltage supplied at domestic level in USA is:#25. When frequency of AC source is very small then:
#27. The combined effect of resistance and reactance is called:#28. Alternating current frequency used in Pakistan is:
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