Physics

A SCR can be turned on

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The internal base1 resistance for a UJT (r'B1) is controlled by the

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The number of pn junctions in a UJT is

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Refer to Figure 4. The symbol for a diac is

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Refer to Figure 4. The symbol for an SCS is

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A diac is equivalent to two back-to-back inverted

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A device that can be used to control a dc motor from an ac source is

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Refer to Figure 3. The characteristic is for

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The purpose of an SCR crowbar circuit is to protect a load in case of

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The characteristic of a UJT that determines its turn-on point is called the

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A device that can be triggered on or off is

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A device that does not have a gate terminal is

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If a SCR is triggered near 45 of the ac cycle, it will conduct for approximately

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Refer to Figure 2. The symbol is for a

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A device that has a negative resistance region is a

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In an SCR, reverse-breakdown voltage VBR(R) is defined at the start of the

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Assume that a UJT has = 0.70 when VBB = 10 V. The peak-point emitter voltage is

Started by evelyn o bentley

The conduction angle of an SCR is controlled by the

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Increasing the firing angle in an SCR control circuit

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Refer to Figure 1. The type of device that is illustrated by this structure is

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The voltage drop across a conducting SCR

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A diac will stop conducting if

Started by magmichele12

To stop conduction in an SCR, you could

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An equivalent circuit for a UJT is back-to back npn and pnp transistors.

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The gate terminal of a PUT always is biased on.

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