Home
Class 12
PHYSICS
An 'antenna' is:...

An 'antenna' is:

A

inductive

B

capacitive

C

resistive above its resonant frequency

D

resistive at resonant frequency

Text Solution

Verified by Experts

The correct Answer is:
D
Antenna is a turned L-C oscillator . At resonant frequency their effective impedance `(omega L - 1 /(omega C))` becomes zero and in the L-C-R circuit only R is effective. Thus antenna is resistance at resonant frequency .
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEMS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP -20|10 Videos

  • CIRCULAR MOTION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP-20|1 Videos

  • CURRENT ELECTRICITY

    MARVEL PUBLICATION|Exercise MCQ|151 Videos

Similar Questions

Explore conceptually related problems

A radiowave that travels in a straight line from the transmitting antenna to the receiving antenna is know as

A 25m long antenna is mounted on an antenna towe. The height of the ancora towels 75 m The wavelength (in meter) of the signal transmitted by this antenna would be

The basal segment of antenna is called

The distance of coverage of a transmitting antenna is 12 . 8 km . Then the height of the antenna is (Given that redius of earth = 6400 km)

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 TV transmitting antenna is 125 m tall. How much service area this transmitting antenna cover, if the receiving antenna is at the ground level? Radius of earth = 6400 km .

If h_(T) and h_(R) are the height of the transmitting and receiving antennas above the earth's surface and R is the radius of earth, then distance between the transmitting and receiving antenna is

A transmitting antenna is at a height of 25 m and the receiving antenna is at a height of 64 m .The maximum distance between them for satisfactory communication is nearly

A transmitting antenna is at a height of 40 m and the receiving antenna is at a height of 60 m .The maximum distance between them for satisfactory communication is nearly