Home
Class 12
PHYSICS
A lossless coaxial cable has a capacitan...

A lossless coaxial cable has a capacitance of ` 7 xx 10^(-11)F` and inductance of 0.39 `muH`. The characteristic impedance of the cable is

A

750 `Omega`

B

.7 `5Omega`

C

75 `Omega`

D

7.5 `Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
`Z _(0) = sqrt((L)/(C))=sqrt((0.39xx10^(-6))/(7xx10^(-11)))=75Omega`
Promotional Banner

Topper's Solved these Questions

  • PRACTICE SET 16

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Paper -1 (Physics & Chemistry)|50 Videos

  • PRACTICE SET 18

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PHYSICS & CHEMISTRY)|50 Videos

Similar Questions

Explore conceptually related problems

A lossless coaxial cable has a capacitance of 7xx10^(-11)F and an inducatnce of 0.39mu H .Calculate characteristic impedance of the cable.

Calculate capacitance of a co-axial cable when its inductance is 0.4muH and the characteristic impedance is 160 ohm

Calculate capacitance of a co-axial cable when its inductance is 0.4muH and the characteristic impedance is 160 ohm

The characteristic impedance of a coaxial cable is of the order of

A two wire transmission line has a capacitance of 20 pF//m and a characterstic impedance of 50Omega ( a ) What is the inductance per metre of this cable? ( b ) Determine the impedance of an infinitely long section of such cable.

A 750 Hz,20 V source is connected to a resistance of 100 Omega , a capacitance of 1.0 muF and an inductance of 0.18 H in series.Calculate the following quantities: (a)Impedence of the circuit (b)Draw an impedence diagram with suitable scale ( c)Power factor (d)The time in which the resistance will get heated by 10^(@)C , provided that the thermal capacity of resistance = 2 J//^(@)C

An oscillating circuit consist of a capacitor with capacitance C=4.0 mu F and a coil with inductance L=2.0 mu H and active resistance R=10 Omega . Find the ration of the energy of the coil's magnetic field to that of the capacitor's electric field at the moment when the current has the maximum value .

A coaxial cable used in transmission line has an inner radius of 0.10 mm and an outer radius of 0.40mm. Calculate the capacitance per meter for the cable. Assume that the space between the conductors is filled with epoxy resin with dielectric constant 3.6.

A coiaxial cable consists of two thin coaxial cylinders electrically connected at one end, an inner cylindrical conducting tube of radius a carrying a steady current l which is screened by an outer cylindrical conducting sheath of radius b which provides a return path. There is no dielectric medium present. Use Ampere's theorem to derive the total magnetic energy stored in the space between the conductors, show that the inductance of a length l of the cable is L=(mu_(0)l)/(2pi)ln((b)/(a)) In this cable (a = 5 mm, b = 10 mm, l = 1000 m) is now employed in a (resistanceless) LC circuit containing a capacitance C = 1000 muF , determine the period of oscillations (neglect the capacitance of the cable itself).

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 17-PHYSICS & CHEMISTRY
  1. In an interference experiment, the spacing between successive maxima o...

    Text Solution

    |

  2. A body floats in a liquid contained in a beaker. The whole system as s...

    Text Solution

    |

  3. A lossless coaxial cable has a capacitance of 7 xx 10^(-11)F and indu...

    Text Solution

    |

  4. A hollow sphere filled with water through a small body in it is then h...

    Text Solution

    |

  5. A coil with air inside it has a self inductance of 0.05 H. A soft iro...

    Text Solution

    |

  6. A telescope, whose objective lens has an apertune of 1 mm for the wave...

    Text Solution

    |

  7. A solid sphere is rotating in free space. If the radius of the sphere ...

    Text Solution

    |

  8. Given F = (a//t) + bt^2 where F denotes force and t time. The diamensi...

    Text Solution

    |

  9. Two radioactive nuclei P and Q, in a given sample decay into a stable ...

    Text Solution

    |

  10. For a stationary wave, t = 8 sin ((pix)/(20)) cos (50 pit). What is th...

    Text Solution

    |

  11. A long wire carries a current of 20A along the directed axis of a long...

    Text Solution

    |

  12. The frequency and intensity of a light source are both doubled. Consid...

    Text Solution

    |

  13. The temperature at which the speed of sound in air becomes double of i...

    Text Solution

    |

  14. (a).Add 3.8 xx 10^(-6) to 4.2 xx 10^(-5) with due regard to significan...

    Text Solution

    |

  15. Two drops of equal radius coalesce to form a bigger drop. What is rati...

    Text Solution

    |

  16. A block of mass m is resting one a smooth horizontal surface. One end ...

    Text Solution

    |

  17. An object is kept on a smooth inclined plane of height 1 unit and len...

    Text Solution

    |

  18. Six capacitors each of capacitance of 2muF are connected as shown in t...

    Text Solution

    |

  19. When all the inputs of a NAND gate are connected together, the resulti...

    Text Solution

    |

  20. The nature of the communication system used in the present time is

    Text Solution

    |