Initial checkin

logseq/bak/pages/G5B/2025-05-01T18_48_55.968Z.Desktop.md

@@ -0,0 +1,99 @@
+G5B – The decibel; current and voltage dividers; electrical power calculations; sine wave root-mean-square (RMS) values; PEP calculations
+
+- [[G5B01]] (B)
+What dB change represents a factor of two increase or decrease in power?
+	- A. Approximately 2 dB
+	- B. Approximately 3 dB
+	- C. Approximately 6 dB
+	- D. Approximately 9 dB
+--
+- [[G5B02]] (C)
+How does the total current relate to the individual currents in a circuit of parallel resistors?
+	- A. It equals the average of the branch currents
+	- B. It decreases as more parallel branches are added to the circuit
+	- C. It equals the sum of the currents through each branch
+	- D. It is the sum of the reciprocal of each individual voltage drop
+--
+- [[G5B03]] (B)
+How many watts of electrical power are consumed if 400 VDC is supplied to an 800-ohm load?
+	- A. 0.5 watts
+	- B. 200 watts
+	- C. 400 watts
+	- D. 3200 watts
+--
+- [[G5B04]] (A)
+How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?
+	- A. 2.4 watts
+	- B. 24 watts
+	- C. 6 watts
+	- D. 60 watts
+--
+- [[G5B05]] (A)
+How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?
+	- A. Approximately 61 milliwatts
+	- B. Approximately 61 watts
+	- C. Approximately 11 milliwatts
+	- D. Approximately 11 watts
+--
+- [[G5B06]] (B)
+What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?
+	- A. 1.4 watts
+	- B. 100 watts
+	- C. 353.5 watts
+	- D. 400 watts
+--
+- [[G5B07]] (C)
+What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?
+	- A. The peak-to-peak value
+	- B. The peak value
+	- C. The RMS value
+	- D. The reciprocal of the RMS value
+--
+- [[G5B08]] (D)
+What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?
+	- A. 84.8 volts
+	- B. 169.7 volts
+	- C. 240.0 volts
+	- D. 339.4 volts
+--
+- [[G5B09]] (B)
+What is the RMS voltage of a sine wave with a value of 17 volts peak?
+	- A. 8.5 volts
+	- B. 12 volts
+	- C. 24 volts
+	- D. 34 volts
+--
+- [[G5B10]] (C)
+What percentage of power loss is equivalent to a loss of 1 dB?
+	- A. 10.9 percent
+	- B. 12.2 percent
+	- C. 20.6 percent
+	- D. 25.9 percent
+--
+- [[G5B11]] (B)
+What is the ratio of PEP to average power for an unmodulated carrier?
+	- A. 0.707
+	- B. 1.00
+	- C. 1.414
+	- D. 2.00
+--
+- [[G5B12]] (B)
+What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?
+	- A. 173 volts
+	- B. 245 volts
+	- C. 346 volts
+	- D. 692 volts
+--
+- [[G5B13]] (B)
+What is the output PEP of an unmodulated carrier if the average power is 1060 watts?
+	- A. 530 watts
+	- B. 1060 watts
+	- C. 1500 watts
+	- D. 2120 watts
+--
+- [[G5B14]] (B)
+What is the output PEP of 500 volts peak-to-peak across a 50-ohm load?
+	- A. 8.75 watts
+	- B. 625 watts
+	- C. 2500 watts
+	- D. 5000 watts