Home / MCQ Bank / Electronics and Communication

Electronics and Communication Electromagnetic Field Theory Difficulty: Medium

If over the course of a day, the maximum electron density in the ionosphere varies from 10 11 to 10 12 m -3 ; the critical frequency changes approximately from:

Select the correct option to test your answer:

More Electronics and Communication Questions

What is the most noticeable effect of a small increase in temperature in the common emitter connected BJT? Which of the following standard had not adopted digital TDMA for high capacity? . . . . . . . . is defined as the time delay that a signal component of frequency ω undergoes as it passes from the input to output of the system. In the circuit shown, what value of R L maximizes the power delivered to R L ? What is approximate data access time of SRAM?