Home
Class 12
PHYSICS
If the ratio of the concentration of ele...

If the ratio of the concentration of electrons and that of holes in a semiconductor is 7/5 and the ratio of their currents is 7/4, then the ratio of their drift velocities is

A

`(5)/(8)`

B

`(4)/(5)`

C

`(5)/(4)`

D

`(4)/(7)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    RESONANCE ENGLISH|Exercise Exercise 2|16 Videos

  • REVISION DPP

    RESONANCE ENGLISH|Exercise All Questions|463 Videos

  • SIMPLE HARMONIC MOTION

    RESONANCE ENGLISH|Exercise Advanced Level Problems|13 Videos

Similar Questions

Explore conceptually related problems

If the ratio of the concentration of electron to that of holes in a semiconductor is (7)/(5) and the ratio of current is (7)/(4) then what is the ratio of their drift velocities ?

If the mass ratio of O_2 and N_2 is 4:7 , then the ratio of their moles is

The ratio of the velocity of electron in 3rd and 5th orbit of hydrogen atom is

The ratio of the circumference of two circles is 4:5. Find the ratio of their radii.

Two wires of the same material but of different diameters carry the same current i . If the ratio of their diameters is 2:1 , then the corresponding ratio of their mean drift velocities will be

If the ratio of A to B is 3:5 and the ratio of B to C is 2:7, what is the ratio of A to C?

The ratio of volumes of two cones is 4:5 and the ratio of the radii of their bases is 2:3. Find the ratio of their vertical heights.

The ratio of 9 : 7 is due to:

Find the ratio : 7m to 17 m

When current is 4 A in a conductor the drift velocity is v_(d) . When the current is 3 A the drift velocity will be

RESONANCE ENGLISH-SEMICONDUCTORS-Exercise 3
  1. In a common base amplifier the phase difference the input signal volta...

    Text Solution

    |

  2. If a full wave rectifier circuit is operating from 50 Hz mains, the fu...

    Text Solution

    |

  3. If the ratio of the concentration of electrons and that of holes in a ...

    Text Solution

    |

  4. In a common base mode of a transition , the collector current is 5.48...

    Text Solution

    |

  5. If the lattice constant of this semiconductor is decreased, then which...

    Text Solution

    |

  6. The circuit has two oppositely connect ideal diodes in parallel. What ...

    Text Solution

    |

  7. If in a p-n junction, a square input signal of 10 V is applied as show...

    Text Solution

    |

  8. Carbon, silicon and germanium have four valence electrons each. At roo...

    Text Solution

    |

  9. A working transistor with its three legs marked P, Q and R is tested u...

    Text Solution

    |

  10. In the circuit below, A and B represent two inputs and C represents th...

    Text Solution

    |

  11. The Fig shown input waveforms A and B to a logic gate. Draw the output...

    Text Solution

    |

  12. A p -n junction (D) shown in the figure can act as a rectifier. An alt...

    Text Solution

    |

  13. The output of an OR gate is connected to both the inputs of a NAND gat...

    Text Solution

    |

  14. Truth table for system of four NAND gates as shown in figure is

    Text Solution

    |

  15. The I - V characteristic of an LED is

    Text Solution

    |

  16. The forward biased diode connection among the following is

    Text Solution

    |

  17. Two identical P-N junctions, may be connected in series with a battery...

    Text Solution

    |

  18. In a p- n junction diode not connected to any circuit,

    Text Solution

    |

  19. For the given circult shown in fig to act as full wave rectifer , the ...

    Text Solution

    |

  20. In a....... baised pn junction , the net flow of holes is from the n ...

    Text Solution

    |