NEET Physics Alternating Current Class 12 Questions

A light bulb and an open coil induction are connected in series to an ac source as shown in figure. Now an iron rod is inserted into the interior of the inductor. The glow of the light bulb

A 50 Hz a.c. source of 20 volts is connected across R and C as shown in figure. The voltage across R is 12 volts. The voltage across C is:

What is the average power dissipated in an inductor over one complete cycle of an AC circuit?

What is the expression for average power in an AC circuit in terms of rms voltage and current?

In an alternating current (AC) circuit, which quantity must be considered when adding voltages across different elements?

What is used to minimize hysteresis loss in the core of a transformer?

What is the unit of capacitive reactance?

What is required for resonance to occur in an electrical circuit?

What theorem is used to combine the voltages across a resistor and capacitor when they are out of phase in an AC circuit?

What is the frequency at which the amplitude of oscillation in a series RLC circuit becomes large due to resonance?

What is the frequency called at which the amplitude of oscillation in a series RLC circuit is maximized?

What is required for resonance to occur in an alternating current circuit?

What is the relationship between rms voltage and the amplitude of ac voltage?

What is the relation between rms voltage and peak voltage in an AC circuit?

Which components must be present in a circuit to achieve resonance?

Which component is essential for resonance to occur in an AC circuit?

In an LC circuit, what is the nature of the energy stored in the capacitor and the inductor over time?

What is the total energy stored in a charged capacitor connected to an ideal inductor when the charge is q_m?

What is the characteristic frequency at which the amplitude of oscillation is maximized in a series RLC circuit?

What is the phenomenon called when a series RLC circuit is driven at a frequency near its natural frequency, resulting in a large amplitude of oscillation?

What is the term used to describe the phase relationship factor between voltage and current in an AC circuit?

What happens to the current and voltage during the decreasing phase of the current in an AC circuit?

What is the average power consumed by an inductor over one complete cycle in an AC circuit?

In the free oscillations of an LC circuit, what remains constant over time?

What is the average power in an AC circuit expressed in terms of rms current and resistance?

At which frequency is the current amplitude at its maximum in a resonant circuit?

What is the term used to describe the frequency at which a series RLC circuit oscillates with maximum amplitude?

What condition is necessary for resonance to occur in an AC circuit?

What is required for resonance to occur in an alternating current circuit?

What phenomenon occurs in a series RLC circuit when it is driven at a frequency close to its natural frequency?

Which of the following statements about AC voltage in a circuit is correct?

Which of the following statements about AC voltage applied to a capacitor is correct?

Which of the following combinations about average power in AC circuits is correct?

Which of the following statements about power in AC circuits is correct?

Which of the following statements about LC circuits and oscillations is correct?

Which of the following statements about LC circuits is correct?

Which of the following statements about resonance in AC circuits is correct?

Which of the following statements about resonance in AC circuits is correct?

Which of the following statements about RLC circuits and resonance is correct?

Which of the following statements correctly describe the characteristics of a series RLC circuit at resonance?

Which of the following statements about power in AC circuits is correct?

Which of the following statements about AC voltage applied to resistors and capacitors is correct?

Which of the following statements about AC voltage in a series RLC circuit are correct?

Which of the following statements about power in AC circuits is correct?

In the context of an LC circuit, which of the following statements about energy oscillation and conservation is correct?

In an LC circuit, which of the following statements about the energy oscillation and current behavior is correct?

Which of the following statements about resonance in AC circuits is correct?

Which of the following statements about AC voltage in capacitive and inductive circuits is correct?

Which of the following statements about RLC circuits is correct?

Which of the following statements about power in AC circuits is correct?