The effect of earth's magnetic field on radiowaves is minimum when

Electronics and Communication Engineering (ECE) : Microwave Communication - Quiz(MCQ)

the electric field lines of radio waves and flux lines of earth's magnetic field are at right angles

the electric field lines of radio waves and flux line of earth's magnetic field are in the same direction

the electric field lines of radiowaves and flux lines of earth's magnetic field oppose each other

None of the above

Correct Answer : Option (B) : the electric field lines of radio waves and flux line of earth's magnetic field are in the same direction

Recently Updated in Microwave Communication Questions

In a microwave resistor the wall thickness is made as small as possible to

minimize capacitive effect

reduce inductance

have low value of R

have high value of R

Correct Answer : minimize capacitive effect

In a klystron amplifier the transit time of electron passing the gap in the cavity should be

less than half cycle

less than one cycle

less than quarter cycle

more than quarter cycle

Correct Answer : less than quarter cycle

At a frequency equal to cutoff frequency in a rectangular wave guide

the flow of electromagnetic energy is zero

the flow of electromagnetic energy is infinite

the flow of electromagnetic energy is 10% of maximum

the flow of electromagnetic energy is 50% of maximum

Correct Answer : the flow of electromagnetic energy is infinite