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Q. Can you explain Noninverting Amplifier?
It is called "noninverting" because there is no sign inversion. A typical circuit is shown in Figure. With a finite op-amp gain Ao,
Since the ideal op amp draws no current,
i1 = i2
Also, as seen from Figure,
v2 = vi
In equating Equations, one gets
which is the gain of an ideal voltage follower. The same result applies if R1 →∞ (i.e., open circuit) for any finite R2.
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Diffusion Capacitance Diffusion capacitance is the capacitance because of transport of charge carriers among the two terminals of a device, for instance, the diffusion of carr
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Q. Ac measurements with constant voltage amplitude reveal that the total core loss of a certain magnetic circuit is 10 W at f = 50 Hz, and 13 Wat f = 60 Hz. Find the total core los
key performance indicators
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why BETA a current gain parameter of common emitter amplifier is temperature dependent?
The magnetic field can be supplied by coils supplied from the output of the generator itself. This is known as self-excitation.There are three ways that the field coils can be conn
A battery having of five cells in series. Each cell is 2.5V and internal resistance is 0.05 Ω. A battery is linked to the load resistance of 15Ω. Verify: i. Total e.m.f
In this case, the armature is connected in series with the field coils. Thus I a = I f = I NB. At starting, the back emf is zero (because the m
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