Home
Class 12
PHYSICS
In the given figure, a diode D is connec...

In the given figure, a diode `D` is connected to an external resistance `R=100 Omega` and an emf of `3.5 V`. If the barrier potential developed across the diode is `0.5 V`, the current in the circuit will be :

A

40mA

B

20mA

C

35mA

D

30mA

Text Solution

Verified by Experts

The correct Answer is:
D
Current `=((3.5-0.5))/(100)A=(3)/(100)A=30mA`
Promotional Banner

Topper's Solved these Questions

  • ELECTRONICS

    ERRORLESS|Exercise Assertion & Reason|26 Videos

  • ELECTRONICS

    ERRORLESS|Exercise NCERT Based Questions (Digital Electronics)|23 Videos

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise ASSERTION & REASON|27 Videos

  • ELECTROSTATICS

    ERRORLESS|Exercise ASSERTION & REASON|25 Videos

Similar Questions

Explore conceptually related problems

Figure Shows a diode connected to an external resistance and an e.m.f. Assuming that the barrier potential developed in diode is 0.5 V , obtain the value of current in the circuit in milliampere.

In the circuit, if the forward voltage drop for the diode is 0.5 V , the current will be

The potential barrier developed in the diode of figure is 0.5 V . The current in the diode is current in the diode is

A cell which has an emf 1.5 V is connection series with an external resistance of 10Omega . If the potential difference across the cell is 1.25 V, then the internal resistance of the cell is ("in" Omega)

An inductor of inducance 5.0 H, having a negligible resistance, is connected in series with a 100 Omega resistor and a battery of emf 2.0 V. Find the potential difference across the resistor 20 ms after the circuit is switched on.

ERRORLESS-ELECTRONICS-Past years questions
  1. Consider the junction diode as ideal. The value of current flowing thr...

    Text Solution

    |

  2. Current in the circuit will be

    Text Solution

    |

  3. In the given figure, a diode D is connected to an external resistance ...

    Text Solution

    |

  4. The given circuit has two ideal diodes connected as show in the figure...

    Text Solution

    |

  5. Which one of the following represents forward bias diode?

    Text Solution

    |

  6. For transistor action which of the following statement are correct (...

    Text Solution

    |

  7. The minimum potential difference between the base and emitter required...

    Text Solution

    |

  8. One way in which the operation of an npn transistor differ from that o...

    Text Solution

    |

  9. In case of NPN-transistor the collector current is always less than th...

    Text Solution

    |

  10. A transistor is operated in common emitter configuration at V(c)=2 V s...

    Text Solution

    |

  11. In a common emitter transistor, the current gain is 80. What is the ch...

    Text Solution

    |

  12. Consider an n-p-n transistor amplifer in common-emitter configuration....

    Text Solution

    |

  13. An amplifier has a voltage gain A(V)=1000. The voltage gain in dB is

    Text Solution

    |

  14. A common emitter amplifier has a voltage gain of 50, an input impedanc...

    Text Solution

    |

  15. A common emitter amplifier gives an output of 3 V for an input of 0.01...

    Text Solution

    |

  16. The input resistance of a common emitter transistor amplifier, if the ...

    Text Solution

    |

  17. In a CE transistor amplifier, the audio signal voltage across the coll...

    Text Solution

    |

  18. In a common emitter (CE) amplifier having a voltage gain G, the transi...

    Text Solution

    |

  19. The input signal given to a CE amplifier having a voltage gain of 150 ...

    Text Solution

    |

  20. A n-p-n transisitor is connected in common emitter configuration in a ...

    Text Solution

    |