1.9 KiB
T5B - Math for electronics: conversion of electrical units, decibels
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T5B01 (C) How many milliamperes is 1.5 amperes? #card
- A. 15 milliamperes
- B. 150 milliamperes
- C. 1500 milliamperes
- D. 15,000 milliamperes
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T5B02 (A) Which is equal to 1,500,000 hertz? #card
- A. 1500 kHz
- B. 1500 MHz
- C. 15 GHz
- D. 150 kHz
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T5B03 (C) Which is equal to one kilovolt? #card
- A. One one-thousandth of a volt
- B. One hundred volts
- C. One thousand volts
- D. One million volts
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T5B04 (A) Which is equal to one microvolt? #card
- A. One one-millionth of a volt
- B. One million volts
- C. One thousand kilovolts
- D. One one-thousandth of a volt
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T5B05 (B) Which is equal to 500 milliwatts? #card
- A. 0.02 watts
- B. 0.5 watts
- C. 5 watts
- D. 50 watts
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T5B06 (D) Which is equal to 3000 milliamperes? #card
- A. 0.003 amperes
- B. 0.3 amperes
- C. 3,000,000 amperes
- D. 3 amperes
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T5B07 (C) Which is equal to 3.525 MHz?
- A. 0.003525 kHz
- B. 35.25 kHz
- C. 3525 kHz
- D. 3,525,000 kHz
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T5B08 (B) Which is equal to 1,000,000 picofarads? #card
- A. 0.001 microfarads
- B. 1 microfarad
- C. 1000 microfarads
- D. 1,000,000,000 microfarads
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T5B09 (B) Which decibel value most closely represents a power increase from 5 watts to 10 watts? #card
- A. 2 dB
- B. 3 dB
- C. 5 dB
- D. 10 dB
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T5B10 (C) Which decibel value most closely represents a power decrease from 12 watts to 3 watts? #card
- A. -1 dB
- B. -3 dB
- C. -6 dB
- D. -9 dB
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T5B11 (A) Which decibel value represents a power increase from 20 watts to 200 watts? #card
- A. 10 dB
- B. 12 dB
- C. 18 dB
- D. 28 dB
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T5B12 (D) Which is equal to 28400 kHz? #card
- A. 28.400 kHz
- B. 2.800 MHz
- C. 284.00 MHz
- D. 28.400 MHz
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T5B13 (C) Which is equal to 2425 MHz? #card
- A. 0.002425 GHz
- B. 24.25 GHz
- C. 2.425 GHz
- D. 2425 GHz