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A series circuit consists of a resistanc...

A series circuit consists of a resistance of `15 Omega`, an inductance of 0.08H and a capacitor of capacitance `30 mu F`. The applied voltage has frequency of `500 rad//s`. Does the current lead or lag the apllied voltage and by what angle.

Text Solution

Verified by Experts

The correct Answer is:
`60.65^(@)` lead
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Knowledge Check

  • A choke coil of resistance 5 Omega and inductance 0.6 H is in series with a capacitance of 10 (mu)F . If a voltage of 200 V is applied and the frequency is adjusted to resonance, the current and voltage across the inductance and capacitance are (I_0), (V_0) and (V_1) respectively. we have

    A
    `(I_0)=40A`
    B
    `(V_0)=9.8 kV`
    C
    `(V_1)=9.8 kV`
    D
    `(V_1)=19.6 kV`
  • In a circuit containing an inductance of zero resistance, the current leads the applied a.c. voltage by a phase angle at

    A
    `90^(@)`
    B
    `-90^(@)`
    C
    `0^(@)`
    D
    `180^(@)`
  • A circuit consists of a noniductive resistor of 50 Omega , a coil of inductance 0.3 H and resistance 2 Omega , and a capacitor of 40 mu F in series and is supplied with 200 volt rms at 50 cycles // sec. Then

    A
    the current lag or lead by an angle `15^(@) 5^(1)`
    B
    the power in the circuit is `710.4 W`
    C
    the power in th circuit is `640 W`
    D
    the current lag or lead by an angle `12^(@) 5^(1)`
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