Home
Class 12
PHYSICS
If 8Omega resistance and 6Omega reactanc...

If 8`Omega` resistance and 6`Omega` reactance are present in an A.C. series circuit then what will be the impedence of the circuit ?

A

`20Omega`

B

`5Omega`

C

`10Omega`

D

`14sqrt2Omega`

Text Solution

Verified by Experts

The correct Answer is:
C

`|Z|=sqrt(R^2+(X_L-X_C)^2)`
`=sqrt((8)^2+(6)^2)`
`=sqrt(64+36)`
`=sqrt100`
`=10Omega`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-D MCQs (COMPETITIVE EXAMS)|64 Videos
  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-C NCERT EXEMPLAR (Long Answer)|5 Videos
  • ATOMS

    KUMAR PRAKASHAN|Exercise Section-D -MCQs asked in GUJCET / Board Exam|34 Videos

Similar Questions

Explore conceptually related problems

An L-C-R series A.C. circuit is tuned to resonance. The impedance of the circuit is ……

An inductance of (200/pi) mH, a capacitance of (10^(-3)/pi)F and a resistance of 10 Omega are connected in series with an a.c. source 220 V, 50Hz. Then what is the phase angle of the circuit ?

In an A.C. circuit, resistance = 12 Omega and capacitance reactance = 9 Omega are connected in series, then the value of impedance of a circuit will be ..........

An L-C-R series circuit with inductor of reactance is 25 Omega , reactance of capacitor is 50 Omega and resistance of 10 Omega is connected to an A.C. source. The impedance of the circuit will be …….

When resonance takes place in series LCR A.C. circuit,

A coil of reactance 8 Omega and resistance 6 Omega is connected in DC circuit then the effective resistance of the circuit ….. Omega .

Resistors with resistances 5 Omega, 10 Omega and 15 Omega are connected in parallel to each other. What will bc thc equivalent resistance of the circuit?

A battery or emf 10 V and internal resistance 3 Omega is connected to a resistot. If the current in the circuit is 0.5 A, what is the resistance of the resistor ?

In an A.C. circuit the inductive reactance is defined as ......

A bettery of emf 10 V and internal resistacne 3 Omega is connected to a resistor. If the current in the circuit is 0.5A, what is the resistance of the resistor ? What is the terminal voltage of the bettery when the circuit is closed ?

KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. An emf E = 4 cos (1000t) volt is applied to an LR circuit of inductanc...

    Text Solution

    |

  2. A coil of inductance L has an inductive reactance of XL in an A.C. cir...

    Text Solution

    |

  3. If 8Omega resistance and 6Omega reactance are present in an A.C. serie...

    Text Solution

    |

  4. Two identical incandescent light bulbs are connected as shown in figur...

    Text Solution

    |

  5. A 220 V, 50 Hz a.c. source is connected an inductance of 0.2 H and a r...

    Text Solution

    |

  6. The resistance of an R-L A.C. circuit is 10 Omega. An emf E0 applied a...

    Text Solution

    |

  7. A resistor 30Omega, inductor of reactance 10Omega and capacitor of rea...

    Text Solution

    |

  8. An inductance of 1 mH, a condenser of 10 muF and a resistance of 50 Om...

    Text Solution

    |

  9. Phasor diagram for the following circuit ……..

    Text Solution

    |

  10. Phasor diagram for the following circuit is …….

    Text Solution

    |

  11. Phasor diagram for the following circuit is …….

    Text Solution

    |

  12. In an A.C. series circuit of L-R voltage applied is 220 V, if the pote...

    Text Solution

    |

  13. In series L-C-R circuit, resistance, inductance and capacitance are co...

    Text Solution

    |

  14. A coil of resistance R and inductance L is joined with a battery of E ...

    Text Solution

    |

  15. In a given circuit V = 5V, VL = 3V then VR=

    Text Solution

    |

  16. A pure resistance and a pure inductance are connected in series across...

    Text Solution

    |

  17. If we consider the phasor if I in positive X-direction for an A.C. cir...

    Text Solution

    |

  18. When above circuit is in the condition of resonance,

    Text Solution

    |

  19. Reading in voltmeter in above circuit is......

    Text Solution

    |

  20. Voltage V1 across the capacitor in above circuit is

    Text Solution

    |