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1
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Describe the meaning of DIAC.
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The DIAC signify that the diode works
on AC.
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2
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Whether the DIAC is unidirectional?
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The DIAC is bi – directional.
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3
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Why the DIAC is not conducted when the supply voltage
is below break over voltage?
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Conduction of Diac
- When the supply voltage is less than
the break over voltage of the DIAC, only leakage current flows through the
device.
- This leakage current flows due to drift of the holes and electrons is
not sufficient to conduct the device therefore the DIAC does not conduct when
the voltage across it below the break over voltage.
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4
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What do you mean by negative resistance characteristics
of the device?
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Negative resistance characteristics
- When the voltage across device
increases, the current through the device decreases and vice versa.
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5
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State the common break over voltage of the DIAC.
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28 to 30 Volt
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6
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In which quadrant, the DIAC has same characteristics?
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First and third
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7
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State the applications of the DIAC.
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Applications
of the DIAC
- Triggering of the triac
- Diac – Triac pair is used for the
control circuit
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