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3 years ago

Explain the necessity of smoothing the output voltage before applying it to a transistor

1 answer:

6 0

In simple words, smoothing can be defined as the circuit which is done to eliminate the ripple from the yield of a direct current power supply.

Explanation:

Necessity of smoothing:

Smoothing can be also applied in the form of a capacitor that acts to decrease or level out variations in a signal. And these capacitors are mostly used after power supply in voltage.
The yield DC voltage of a half-wave rectifier provided in the figure of a sinusoidal wave.
In a method to provide a constant DC voltage from a corrected AC source, a filter or smoothing circuit is required.

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Answer:

Explanation:

Given

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Speed of Putty just before it strike the ceiling is given by

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3 years ago

Find the wavelength in meters for a transverse mechanical wave with an amplitude of 10 cm and a radian frequency of 20π rad/s if

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Answer:

The wavelength of the wave is 20 m.

Explanation:

Given that,

Amplitude = 10 cm

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Bulk modulus = 40 MPa

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$v=\sqrt{\dfrac{k}{\rho}}$

Put the value into the formula

$v=\sqrt{\dfrac{40\times10^{6}}{10^3}}$

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Using formula of wavelength

$\lambda =\dfrac{v}{f}$

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