Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETPhysicsAlternating Current

For the AC circuit shown below, phase difference between emf and current is 4 radian as shown in the graph. If the impedance of the circuit is 1414 , then the values of P and Q are

Options

  1. A1 k , 10 F
  2. B1 k , 1 F
  3. C1 k , 10 mH
  4. D1 k , 1 mH

Correct answer

A. 1 k , 10 F

Step-by-step solution

In the shown figure, current is ahead of voltage, so its a R C circuit, so P is a resistor and Q is a capacitor. Now, in R C circuit, Z= R^2+X_C^2 For simple solution, Given aligned & =1000 2 & =1000 1+1 & = (1000)^2+(1000)^2 X_C & =1000 R=1000 Now, X_C & = 1 C C= 1 X_C & & = 1 100 1000 =10 F aligned Z=1414=1000 1.414

Practice Alternating Current on Quantrex Academy →

More from Alternating Current

A step down transformer connected to an a.c. mains of 220 V is made to operate at 5.5 V, 44 W lamp. The current in the primary circuit is (Ignore power losses) 2026Which phasor diagram represents LCR circuit at resonance? 2026For an R-L series circuit, the power factor is 3 2 , for R-L frequency f Hz. If the frequency doubles, the new power factor will be 2026In an AC circuit, the current is I = 100 (5t) A. The value of I_ rms is 2026The ratio of power factor of purely resistive circuit to purely reactive circuit is ( 0^ = 1 and 90^ = 0 ) 2026In an LCR series circuit, at resonance, 2026In an AC circuit, E and I are given by E = 150 (150t) V and I = 150 (150t + 3 ) A. The power dissipated in the circuit is (60)^ = 1/2 2026A series LCR circuit is connected across a source E of e.m.f. E=15 (50 t- 3 ) . The current from the supply is I=5 (50 t+ 6 ) . The impedance of the circuit and the phase differenc 2026 Full Alternating Current list All NEET PYQs