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SVEN [57.7K]
3 years ago
8

A voltage amplifier needs a high input resistance and a low output resistance. Select one: True False

Physics
1 answer:
cupoosta [38]3 years ago
6 0

Answer:

Explanation:

In electric circuit , the potential difference is always developed across the resistance .

Now is we are to amplify the voltage , that means low input voltage is converted into high voltage output .

Therefore we require low resistance at input for low voltage and high out put resistance for high output

Thus the statement given is wrong .

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A torsional pendulum consists of a disk of mass 450 g and radius 3.5 cm, hanging from a wire. If the disk is given an initial an
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To solve this problem we will use the kinematic equations of angular motion, starting from the definition of angular velocity in terms of frequency, to verify the angular displacement and its respective derivative, let's start:

\omega = 2\pi f

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\omega = 5\pi rad/s

The angular displacement is given as the form:

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In the equlibrium we have to t=0, \theta(t) = \theta_0 and in the given position we have to

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