GROL Matching
What will produce a magnetic field? |
A current flowing through a conductor. |
A common emitter amplifier has: |
More voltage gain than a common collector. |
Corrosion resulting from electric current flow between dissimilar metals is called: |
What happens to reactive power in a circuit that has both inductors and capacitors? |
It alternates between magnetic and electric fields and is not dissipated. |
What formula would determine the inductive reactance of a coil if frequency and coil inductance are known? |
A wave whose amplitude at any given instant can be represented by the projection of a point on a wheel rotating at a uniform speed. |
What is meant by the term “back EMF”? |
A voltage that opposes the applied EMF. |
What are the two most commonly-used specifications for a junction diode? |
Maximum forward current and PIV (peak inverse voltage). |
How might you reduce the inductance of an antenna coil? |
Reduce the number of turns. |
Which of the following groups is correct for listing common materials in order of descending conductivity? |
Silver, copper, aluminum, iron, and lead. |
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