A supplemental photocatalytic oxidation filter (PCO) is often included with ____________________ air purifiers.

Fill in the blank(s) with the appropriate word(s).


ultraviolet

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Explain the following message: “Wildcard” type output detected - an estimate has been made but actual results may vary due to the large variances in different output card types.

What will be an ideal response?

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MT uses very fine _____ powder to indicate discontinuities open to the surface or just below the surface of magnetic materials.? ?  

Fill in the blank(s) with the appropriate word(s).

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A bipolar BLDC motor is used to drive a reversible torque. The voltage of the dc source is 400 V, k? = 1.0 Vs, and the armature resistance of the motor is 1.0 V. At a modulation factor of 100%, the motor is running at 500 rpm. Compute the modulation factor that rotates the machine at 100 rpm.

What will be an ideal response?

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Using nodal analysis, find v? in the circuit of Fig. 3.63.

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