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