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Work must be done against the electromagnetic torque in order to generate the voltage (and current) supplied to the electrical load connected to the generator. Therefore energy conversion occurs from mechanical energy to electrical energy.
The mechanical power input is T.ωThis is converted into electrical power e.Ia (Some may be lost due to friction and windage losses in a practical machine)
The electrical power out = Vout.Io
Vout is less than the induced emf 'e' due to volt drop across Ra and the brushes
Why are the operating voltages of a CRT arranged so that the deflection plates are nearly at ground potential?
direct reading probes
if the sheet resistance of a tin oxide is 100 ohms, what is the thickness of the oxide layer?
A battery having of 12 cells are divided in three group which each group having of four cells in series. The three groups are joined in parallel. The emf of every cell is 1.5V and
Buck Boost Converter The output of buck boost regulator may be less than or greater than the input voltage. Since the polarity of output voltage is opposite to that
Q. Figure gives the frequency-response graphs for a 709 op amp. Choose compensating components for the circuit to have a gain of 100 and a frequency response of up to 100 kHz.
Responses to Exponential Excitations Let us consider Aest as a typical exponential excitation in which A is a constant and s is a complex- frequency variablewith a dimension of
Q. Express the waveform of the staircase type shown in Figure as a sum of step functions.
For Parity Flag PRE ( Return on Parity Even) and RPO ( Return on Parity Odd) Instructions RPE returns from the subroutine to the calling program if parity flag is not s
Question: A DC, separately excited motor is supplied from a 240-V source. When the motor is unloaded, it draws 1A of current from the source. When the motor is loaded, it draws
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