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More Electronics and Communication Questions
Consider the following statements regarding 8051 microcontroller: 1. The size of RAM in 8051 is 128 bytes. 2. RAM locations 00-1FH are assigned to the register banks and stack. 3. RAM location 20-2FH are available as a place to save byte-sized data. Which of the above statements are correct?
A step-index fiber has core refractive index 1.46 and radius 4.5μm. Find the cutoff wavelength to exhibit single mode operation. Use relative index difference as 0.25%.
Losses in photonic crystal fibers are reduced to a level of . . . . . . . .
Which of the following methods can be used for measuring power without using wattmeter. 1. One voltmeter, one ammeter 2. Two voltmeters, two ammeters 3. Three voltmeters 4. Three ammeters
Satellite used for international communication are known as