Find N(A)for the Set A $A = \{ x \mid x$

question 149

Multiple Choice

Find n(A) for the set A.
- $A = \{ x \mid x$ is a number on a clock face $\}$

• A) \(n ( A ) = 6\)
• B) \(n ( A ) = 3\)
• C) \(n ( A ) = 12\)
• D) \(\mathrm { n } ( \mathrm { A } ) = 24\)

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Definitions:

Optical Isolator Circuit

A component that uses light to transfer an electrical signal between two isolated circuits, preventing high voltages from affecting the system receiving the signal.

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Short-duration surges, spikes, or dips in electrical power supply voltage, which can damage equipment or affect performance.

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Extraneous interference mixed with a valuable signal, which masks the information it carries.

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An electromechanical switch used within electronic circuits to control a circuit by a low-power signal or multiple circuits by a single signal.