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True or False: Revenue should be recognized when it is earned and realizable, regardless of when cash is received. True   /   False

True or False: A company with a gross profit margin of 40% and a net profit margin of 5% likely has very high operating expenses relative to its gross profit. True   /   False

Hydrogen fuel is fed into the ___ of a fuel cell.

The electron flow motor rule states that the ___ points in the direction of the electron current flow in the conductor.

A(n) ___ can be used in a shunt regulator.

An L-section ___ filter is a filter that reduces or eliminates the amount of DC ripple at the output of a circuit by using a resistor and capacitor as an RC time constant.

A(n) ___ can be used to check a zener diode as long as it has a somewhat higher voltage than the zener diode to be checked.

___ typically consist of one or more diodes used to control the flow of current in a circuit.

When troubleshooting full-wave rectifiers, tracing the AC signal through the ___ is the most accurate method of troubleshooting problems that cannot be found by a visual check.

The photovoltaic effect is the production of electrical energy due to the absorption of light ___ in a semiconductor material.