What is the range of frequencies involved

Assignment Help Physics

Reference no: EM13668304

Curious about the resistance of an audio speaker, Luke Klaus Lee measures the resistance of a speaker which is labeled as having a6 Ω impedance. The voltmeter’s lowest scale is 200Ω and only gives one digit. Wanting more than one digit, he meditates on this and his mantra gives him the solution to the measurement problem: Ohm’s Law! Luke gauges the voltage of a D cell battery to be 1.45 V. He connects this to the speaker and the meter, in current measuring mode, and gets a reading of 0.22A.

Suppose that the rated impedance has about one important digit (6means among 5.5 and 6.5). The frequencies of the electrical signals to the speaker are the same as the audio frequencies it produces (look in the sound chapter for this range).

a) What is the range of frequencies involved?

b) What is the range of possible values for the inductance of the speaker coil if the impedance is to be in the range 5.5 to 6.5 over the range of audio frequencies? Do these values seem reasonable for such a coil?

Reference no: EM13668304

Questions Cloud

Distant moon imaginarius has half the diameter of the earth : The distant moon imaginarius has half the diameter of the earth. The free-fall acceleration on the imaginarius is a= 4 m/s^2. What is the ratio of the average mass density of imaginarius to that of earth, Q= p (imaginarius) / p (earth)?

Radar is to coat the plane by an antireflective polymer : A possible means for making an airplane invisible to radar is to coat the plane by an antireflective polymer. If radar waves have a wavelength of 3.10 cm and the index of refraction of the polymer is n = 1.70, how thick would you make the coating? (S..

What is the dissimilarity in the elapsed time son two clocks : A spacecraft flies away from the earth with a speed of 4.90×106 {\rm m/s} relative to the earth and then returns at the same speed. The spacecraft carries an atomic clock that has been carefully synchronized by an identical clock that remains at rest..

Oscillation amplitude drops to half of its initial value : A car and its suspension system act like a mass-spring system with m= 1200kg and k= 58 kN/m. Its worn-out shock absorbers provide a damping constant b= 230 kg/s. The car hits a pothole that sets it oscillating. How many oscillations will it make befo..

What is the range of frequencies involved : Curious about the resistance of an audio speaker, Luke Klaus Lee measures the resistance of a speaker which is labeled as having a6 Ω impedance. The voltmeter’s lowest scale is 200Ω and only gives one digit. What is the range of frequencies involved?

Are you being a nice guy or doing something illegal : Are you being a nice guy or doing something illegal?

Why do you find a given area interesting : Why do you find a given area interesting

Finance post-crisis still a hot major : Finance: Post-Crisis, Still a Hot Major

The first national bank of wal-mart : The First National Bank of Wal-Mart" strike a positive or negative chord

User Account

All Pages