Home
Class 12
PHYSICS
A radio can tune over the frequency rang...

A radio can tune over the frequency range of a portion of MW broadcast band (800 kHz to 1200 kHz). If its LC circuit has an effective inductance of `200 mu H`, what must be the range of its varialbe capacitor ?

Text Solution

Verified by Experts

The correct Answer is:
88pF to 198 pF
Promotional Banner

Similar Questions

Explore conceptually related problems

A radio can be turned over a frequency range from 500 kHz to 1.5 MHz . If its L-C circuit has an effective inductance of 400 (mu)H , what is the range of its variable capacitor.

A radio tuner has a frequency range from 500 kHz to 5 MHz . If its LC circuit has an effective inductance of 200 mu H , what is the range of it varialbe capacitors? (Take pi^(2) = 10 ) .

A radio set can be tuned to any station in the frequency range 6 MHz band. What is the corresponding wavelength band of radio set ?

Perhaps, the most commonly used mode of communication involves use of free space as a communication channel between transmitter and receiver. The various possible modes of using of free space have been described below Ground wave communication : This mode is used for low frequency as at high frequency, losses become large. This is useful for distance of the order of 1 km. Space wave communication: The signals are transmitted directly from transmitter to receiver. There is no limit to upper frequency, but its range is limited to few hundred kilometers. The range depends on the height of transmitting antenna Sky wave communication : The signals are sent towards sky They are reflected back towards earth by ionosphere. Its range can be above 500 km. But, very high frequencies (above 10 MHz) are not reflected back. Satellite communication: The signals that cannot be reflected back by ionosphere are reflected back by satellite. Moon is a passive satellite of earth. The frequency range allotted to FM radio broadcast is 88 MHz to 108 MHz. Which of the following communication channels can be used for its transmission?

An AM radio station operating at 630 kHz is permitted to broadcast audio frequencies up to 6 kHz. The band pass filter in its modulation circuit can retain the frequencies

Statement 1: Ground wave communication is effective only at low frequencies in the range 500 kHz to about 1500 kHz Statement 2: The decrease in the intensity of the signal due to absorption by the earth and its atmosphere is higher for higher frequencies.

An LC circuit oscillating at natural frequency conssts of an inductor of inductance 30 m H and a capacitor of capacitance 60 muF . The maximum value of instantaneous charge on capacitor in the circuit is 250 mu C . If I is the current in the circuit then answer the following : (i) What is the value of (dI)/(dt) when charge is 150 mu C? (ii) Calculate the value of I when charge is 200 muC . (iii) Find the maximum value of I. (iv) For what value of q I is half of its maximum value ?

An inductor of inductance 2.0 mH is connected across a charged capacitor of capacitance 0.5 mu F and the resulting LC circuit is set oscillating at its natural frequency. Let Q denote the instantaneous charge on the capacitor and I the current in the circuit. it is found that the maximum value of charge Q is 200 mu C . what is the maximum value of I (in ampere)?