Electronics - Alternating Current vs Direct Current
Exercise : Alternating Current vs Direct Current - General Questions
- Alternating Current vs Direct Current - General Questions
- Alternating Current vs Direct Current - True or False
- Alternating Current vs Direct Current - Filling the Blanks
21.
AC effective voltage is named:
22.
If a voltmeter measures a sine wave as 500 mV, what would be its average value?
Answer: Option
Explanation:
Some AC Voltage Conversion:
Peak to rms: multiply peak by 0.707.
Peak to average: multiply peak by 0.637.
Rms to peak: multiply rms by 1.414.
Rms to average: multiply rms by 0.9.
Average to rms: multiply avg by 1.111.
Average to peak: multiply avg by 1.567.
Mostly voltmeter shows rms value. So, Vav = 0.9*Vrms
= 0.9*500.
= 450mV ~ [D] 451 mV.
23.
One adjustable knob on the oscilloscope that allows the trace to be aligned with a reference graticule is called the:
24.
Signal comparisons may be most easily seen when using which item of test equipment?
25.
The magnitude that an alternation varies from zero is called its:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers