A radio antenna of 30m. The acceptor is on the ground `R_"earth = 6400km`. What is the area covered for signalling

The radius of the earth is 6400km , what is its capacitance?

A TV transmitting antenna is 100 m tall. If the receiving antenna is on the ground the service area is

A T V transmitting antenna is 80 m tall. If the receiving antenna is on the ground the service area is

A anetenna is of height 500 m. What will be its range (Radio of the earth is 6400 km) ?

If the TV telecast is to cover a radius of 120 km ( Given , the radius of the earth = 6400 km ), the height of the transmitting antenna is

A transmitting antenna of height 25 m is fitted at the top of a tower of height 20m. What is the height of the receiving antenna from ground level if the maximum distance between transmitting antenna and receiving antenna on ground is 56 km. Radius of earth = 6400 km.

Transmitter antenna height = 50m, receiver antenna height = 80m. Radius of earth = 6400 km. Find maximum distance between for LOS communication.

A radio transmitter antenna of height 100 m stands at the top of a tall building. At a point on the ground, the angle of elevationof the bottom of the antenna is 45^(@) and that of the the top of the antenna is 60^(@) . What is the height of the building ?

An artificial satellite is moving in circular orbit around the earth with speed equal to half the magnitude of escape velocity from the surface of earth. R is the radius of earth and g is acceleration due to gravity at the surface of earth (R = 6400km) Then the distance of satelite from the surface of earth is .