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Electromagnetic Induction And Ac Questions
15 Practice QuestionsStart Practicing Now
- [Hard]Magnitude of impedance Z of series RLC at angular frequency ω is:...
- [Hard]High Q factor in resonant circuit implies:...
- [Medium]At resonance in series RLC circuit current is maximum because:...
- [Easy]Instantaneous AC voltage form V = V0 sin(ω t) has rms value:...
- [Medium]Eddy currents are induced circulating currents leading to:...
- [Medium]Ideal transformer voltage ratio equals turns ratio V2/V1 =:...
- [Medium]Induced EMF in inductor L with changing current di/dt is:...
- [Easy]Lenz's law ensures induced current direction opposes:...
- [Easy]LC circuit resonant angular frequency is:...
- [Easy]Inductive reactance X_L in AC of angular frequency ω is:...
- [Medium]Average power in AC circuit with Vrms, Irms and phase angle φ is:...
- [Hard]At high frequencies current tends to concentrate:...
- [Hard]Rod length ℓ moving perpendicular to B with speed v. Induced EMF is:...
- [Easy]Induced EMF magnitude equals rate of change of:...
- [Easy]Capacitive reactance X_C is:...