Home
Class 12
PHYSICS
Assume that the silicon diode in the giv...

Assume that the silicon diode in the given circuit requires a minimum current of 1 mA to be above the (knee-point voltage = 0.7 V) of its `I-V` characteristics. Assuming that the voltage across the diode is independent of current above the knee-point, find the maximum value of R so that the voltage is above the knee-point if `V_(B) = 5A`. Also find the value of R to establish a current of 5 mA in the circuit for the since voltage.

Text Solution

Verified by Experts

The correct Answer is:
`4300 Omega,300 Omega
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The junction diode in the following circuit requires a minimum current of 1 mA to be above the knee point (0.7 V) of its I-V characterstic curve. The voltage across the diode is independent of current above the knee point. If V_(B)=5 V , then the maximum value of R so that the voltage is above the knee point, will be

What is knee voltage

In the current versus voltage characteristics of a diode minimum current of 1 mA is required for the knee voltage to be is connected in a cirucit the minimum value of R so that the voltage is above knee point is

Assuming that the silicon diode (having negligible resistance) the current through the diode is (knee voltage of silicon diode is 0.7V )

Assuming that the silicon diode having resistance of 20 Omega , the current through the diode is (knee voltage 0.7 V)

In the given circuit the voltage drop across the diode is 0.8 V, if the diode can withstand current upto maximum of 30 mA, then find the maximum voltage of the battery

The silicon diode shown in fig. is rated for a maximum current of 10mA . Calculate the minimum value of resistor R . Asume the forward voltage drop across the diode to be 0.7V .

NN GHOSH-DIODE, TRIODE & TRANSISTER-Exercises
  1. A diode has Child's constant K =0.2 (current in mA and voltage in volt...

    Text Solution

    |

  2. In a certain triode, the output is 5 mA with an anode potential of 200...

    Text Solution

    |

  3. A triode valve of anode slope resistance 20 kOmega is used with an ano...

    Text Solution

    |

  4. The voltage of a triode amplifier with a resistive load of 5 kOmega is...

    Text Solution

    |

  5. The plate resistance of a triode is 7.7 kOmega, and the transconductan...

    Text Solution

    |

  6. Determine the conductivity of pure germanium at 27^(@)C. The concentra...

    Text Solution

    |

  7. In a p-n junction diode the reverse saturation current is 10 muA. What...

    Text Solution

    |

  8. Assume that the silicon diode in the given circuit requires a minimum ...

    Text Solution

    |

  9. The base current of a transistor is 105 muA and the collector current ...

    Text Solution

    |

  10. In a silicon transistor, a change of 7.89 mA in the emitter current p...

    Text Solution

    |

  11. In a silicon transistor the base current is changed by 20 mu A. This r...

    Text Solution

    |

  12. In triode valve, for a grid voltage V(g) = -1.2 V, the plate current I...

    Text Solution

    |

  13. In the accompanying circuit (Fig. 5.9) the value of beta is 100. Find ...

    Text Solution

    |

  14. In the accompanying circuit Fig. 5.10, if it is assumed that when that...

    Text Solution

    |

  15. In the given circuit Fig. 5.11, the base current is 10 muA and the col...

    Text Solution

    |

  16. In the given circuit (Fig. 5.12) calculate the value of the collector ...

    Text Solution

    |

  17. Calculate the emiter current and collector voltage of the circuit give...

    Text Solution

    |

  18. A transistor connected in common emitter configuration has V(C C)=8V, ...

    Text Solution

    |

  19. In a transistor collector load is 4 kOmega whereas the zero signal cur...

    Text Solution

    |