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Electronics and Communication Electromagnetic Field Theory Difficulty: Medium

If the magnitude of $$\overrightarrow {\text{H}} $$ in a plane wave is 1 A/m, what is the magnitude of $$\overrightarrow {\text{E}} $$ for a plane wave in free space: A satellite beam that covers almost 42.4% of the earths surface. In a typical 555 astable multivibrator circuit, if R A = R B = 2.2 kΩ and C = 0.1 µF then the free-running frequency is: If the lower limit of Region of Convergence (ROC) is greater than the upper limit of ROC, the series $$X\left( z \right) = \sum\nolimits_{n = - \infty }^\infty {x\left( n \right){z^{ - n}}} $$ Blocking oscillators are used as