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DC chopper
This is one stage conversion device which is used for direct conversion of fixed de voltage at a level to an adjustable dc voltage at another level.
Figure DC Chopper
Chopper is high speed on/ off semiconductor switch is represented by a switch SW with an arrow as shown no current will flow if the switch is off and when it is on current will flow in the direction of arrow only.
use of ranging and attenuator circuit
what is a armature reaction ?? give some concepts on double rotating field theory?? thanks
Q. The flux in a magnetic core is alternating sinusoidally at a frequency of 500 Hz. The maximum flux density is 1 T. The eddy-current loss then amounts to 15W. Compute the eddy-cu
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Q. A current i(t) = 20 cos(2π × 60)t A fows through a wire. Find the charge flowing, and the number of electrons per second that are passing some point in the wire.
Triode Mode When V GS > V th and V DS GS - V th ) The transistor is turned on, and a channel has been created that allows current to
Q. Show the Frequency response of Rc Coupled Amplifier? 1. At low frequency i.e,less than 50 Hz reactance of Cc is going high hence same part of the signal will pass from one s
what is direct reading probe
please explain phasor diagram and equivalent circuit
LT Metering or Low Tension Metering The subsequent types of meters are generally used for LT consumers: Whole Current Meters i) Single phase meters ii) 3-phase
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