Physics · Oscillators

In a unijunction transistor (UJT) relaxation oscillator circuit, with inter-base resistance R BB = 5 kΩ, intrinsic stand-off ratio η = 0.6, valley voltage V v = 1 V, valley current I v = 10 mA, and peak current I p = 10 μA, the value of the base-1 resistance R B1 is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

11 kΩ
24 kΩ
33 kΩ✓
42 kΩ

Correct answer

3 kΩ

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In a unijunction transistor (UJT) relaxation oscillator circuit, with inter-base resistance R BB = 5 kΩ, intrinsic stand-off ratio η = 0.6, valley voltage V v = 1 V, valley current I v = 10 mA, and peak current I p = 10 μA, the value of the base-1 resistance R B1 is:

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In a unijunction transistor (UJT) relaxation oscillator circuit, with inter-base resistance R BB = 5 k&Omega;, intrinsic stand-off ratio &eta; = 0.6, valley voltage V v = 1 V, valley current I v = 10 mA, and peak current I p = 10 &mu;A, the value of the base-1 resistance R B1 is:

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In a unijunction transistor (UJT) relaxation oscillator circuit, with inter-base resistance R BB = 5 kΩ, intrinsic stand-off ratio η = 0.6, valley voltage V v = 1 V, valley current I v = 10 mA, and peak current I p = 10 μA, the value of the base-1 resistance R B1 is: