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T5B10: Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

T5B10T5B

Which decibel value most closely represents a power decrease from 12 watts to 3 watts?

Answer choices for T5B10
Why this wins

The key fact is -6 dB. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

P = E × I

Direct answer summary (2026-2030 NCVEC pool)

The official correct answer for T5B10 is -6 dB.

The key fact is -6 dB. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in T5B

T5B01How many milliamperes is 1.5 amperes?T5B02Which is equal to 1,500,000 hertz?T5B03Which is equal to one kilovolt?T5B04Which is equal to one microvolt?T5B05Which is equal to 500 milliwatts?T5B06Which is equal to 3000 milliamperes?