Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Manipal MET2017PhysicsAlternating Current

A sinusoidal voltage of peak value 300 V and an angular frequency =400 rad / s is applied to a series L-C-R circuit, in which R=3 , L=20 mH and C=625 ~F . The peak current in the circuit is

Options

  1. A30 2 ~A
  2. B60 A
  3. C100 A
  4. D60 2 ~A

Correct answer

B. 60 A

Step-by-step solution

The impedance of the circuit is aligned Z & = R^2+ (X_L-X_C )^2 X_L & = L=400 20 10⁻³=8 H X_C & = 1 C = 1 400 625 10⁻⁶ =4 C Z & = (3)^2+(8-4)^2 =5 i & = E Z = 300 5 =60 ~A aligned

Practice Alternating Current on Quantrex Academy →

More from Alternating Current

An electronic device operates at 2 MHz. The oscillating circuit has an inductance 20 10⁻⁵ H. What is the capacitive reactance of the resonant circuit? 2026When a current of 2.5 A passes through the primary coil of a transformer of 200 number turns, the magnetic flux linked with the secondary coil having 400 turns is 600 10⁻⁶ T m^2 . 2026In a given circuit, the instantaneous values of the alternating voltage and current are V = 0.5 (80 t + 3 ) volt and I = 0.5 (80 t) ampere respectively. Find the average power cons 2026A source of alternating emf = ₀ ( t) is connected to a capacitor. Then the instantaneous current in the circuit is: 2026If wattless current flows in an AC circuit, then the circuit is: 2026A solenoid having resistance R = 60 and inductance L = 0.4 H is connected to an AC source V = 100 2 200t . Find the maximum current. 2026In a circuit containing a pure resistor connected to an AC source, 2026A light bulb rated 100 W is connected to an AC source of 220 V, 50 Hz. The rms current through the bulb is 2026 Full Alternating Current list All Manipal MET PYQs