1. (a) If the current in a sinusoidally driven series RLC circuit leads the emf,
ID: 1701414 • Letter: 1
Question
1. (a) If the current in a sinusoidally driven series RLC circuit leads the emf, would we increase or decrease the capacitance to increase the rate at which energy is supplied to the resistance? (b) Will this change bring the resonant angular frequency of the circuit closer to the angular frequency of the emf or put it farther away?2. An alternating current emf device in a certain circuit has a smaller resistance than that of the resistive load in a circuit; to increase the transfer of energy from the device to the load, a transformer will be connected between the two. 9a) Should N, be greater than or less than N, (b) Will that make it step-up or step-down transformer?
please help
Explanation / Answer
a) current lead, so that this have capacitance impedance. to reduce capacitance impedance, we have to increase the capacitance. b)yes, because when resonance happen, the current and the voltage ll have the same phase. ----------------- b) to increase the energy transfered, we have to increase the voltage across the load resistor. so that it should be step up transformer.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.