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Physics Test - ...

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  • Question 1
    5 / -1

    The current gain of a transistor in a common emitter configuration is 50. If the emitter current is 5.5 mA, find the base current.

  • Question 2
    5 / -1

    A transistor having α = 0.90 is used in a common base amplifier. If the load resistance is 5.0 kΩ and the dynamic resistance of the emitter junction is 50 Ω, then calculate the voltage gain.

  • Question 3
    5 / -1

    What will the power gain of a transistor if it’s α value is 0.80 and the voltage gain is 95?

  • Question 4
    5 / -1

    dentify the relationship between base current amplification (α) and emitter current amplification (β).

  • Question 5
    5 / -1

    A hydrogen atom in its ground state absorbs 10.2 eV of energy. What is the orbital angular momentum is increased by?

  • Question 6
    5 / -1

    When a hydrogen atom is in its first excited level, what is the relation of radius and Bohr radius?

  • Question 7
    5 / -1

    Which of the following is true regarding the Bohr model of atoms?

  • Question 8
    5 / -1

    What will be the longest wavelength in the Balmer series of hydrogen spectrum?

  • Question 9
    5 / -1

    The radius of the Bohr orbit depends on which of the following

  • Question 10
    5 / -1

    Which theory is confirmed by the Davisson – Germer experiment?

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