JEE Main2013PhysicsAlternating CurrentActual
In a series L - C - R circuit, C =10⁻¹¹ Farad, L =10⁻ ^5 Henry and R =100 Ohm , when a constant D.C. voltage E is applied to the circuit, the capacitor acquires a charge 10⁻⁹ C. The D.C. source is replaced by a sinusoidal voltage source in which the peak voltage E ₀ is equal to the constant D.C. voltage E. At resonance the peak value of the charge acquired by the capacitor will be :
Options
- A10⁻¹⁵ C
- B10⁻⁶ C
- C10⁻¹⁰ C
- D10⁻⁸ C
Step-by-step solution
No Solution Available
Practice Alternating Current on Quantrex Academy →
More from Alternating Current
Consider a circuit consisting of a capacitor of capacitance C and a coil with N turns per unit length, cross sectional area S and length d , where d^2 S . There is another coil of 2026An LCR series circuit driven with E_ rms = 90 V at frequency f_d = 30 Hz has resistance R = 80 , , an inductance with inductive reactance X_L = 20.0 , and capacitance with capacitiv 2026A series LCR circuit with R = 20 , L = 1.6 H and C = 40 F is connected to a variable frequency a.c. source. The inductive reactance at resonant frequency is _______ . 2026An a.c. source of angular frequency is connected across a resistor R and a capacitor C in series. The current is observed as I . Now the frequency of the source is changed to /4 , 2026An inductor of 10 mH, capacitor of 0.1 F and a resistor of 100 are connected in series across an a.c power supply 220 V, 70 Hz. The power factor of the given circuit is 0.5 . The d 2026The figure given below shows an LCR series circuit with two switches S₁ and S₂ . When switch S₁ is closed keeping S₂ open, the phase difference ( ) between the current and source v 2026An inductor stores 16 J of magnetic field energy and dissipates 32 W of thermal energy due to its resistance when an a.c. current of 2 A (rms) and frequency 50 Hz flows through it. 2026The electric current in the circuit is given as i=i_ o (t / T) . The r.m.s current for the period t=0 to t=T is _ _ _ _ . 2026
Full Alternating Current list
All JEE Main PYQs