<span>To assign a conditional value, use the IFF function. It is an abbreviation for Immediate If. It is a function </span>on spreadsheets that returns the second or third parameter based on the evaluation of the first parameter. <span>You use </span>IIf<span> to determine if another expression is true or false. If the expression is true,
</span>IIf<span> returns one value; if it is false, </span>IIf<span> returns another.</span>
Answer:
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Explanation:
Two types of power supplies exist, DC-DC and AC-DC. DC-DC power supplies allow you to plug in electrical devices into car outlets or similar sources that supply direct current, or DC, power. These power supplies are not the most commonly used, though.
Classification of Power Supply and Its Different Types
OUTPUT = DC OUTPUT = AC
INPUT = AC Wall wart Bench power supplies Battery charger Isolation transformer Variable AC supply Frequency changer
INPUT = DC DC-DC converter Inverter Generator UPS
