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Q. Explain braking mode of rotating machines?
The braking mode has both mechanical and electric energy input. The total input is dissipated as heat. The machine is driven by the externally applied torque T, while the electromagnetic torque Te is opposing T, thereby braking the machine. The electric braking of motor drives is achieved by causing the motor to act as a generator, receiving mechanical energy from the moving parts and converting it to electric energy, which is dissipated in a resistor or pumped back into the power line. Note that the applied voltage v and the generated emf e do not oppose each other.
What is RXD? RXD- Receive Data Input This input pin of 8251A gets a composite stream of the data to be received by 8251A.
Analysis in equilibrium : Solution of Poisson's Equation with suitable boundary conditions - Non-equilibrium analysis: The electron and hole densities are no longe
Write a program implementing the conjugate gradient method (un-preconditioned). Solve the matrix equation corresponding to a finite difference node-spacing, h = 0.02m in x and y di
Q. What are the various types of amplifiers? Amplifiers can be classified as follows: (a) Based on the transistor configuration 1. Common emitter amplifier 2. Common c
The winding of an electromagnet has an inductance of 3H and a resistance of 15?. When it is connected to a 120 V d.c. supply, Determine: (a) the steady state value of current f
Transfer Characteristics The transfer characteristics of power MOSFET transfer characteristic shown the variation of ID with V GS denote the drain current with shorted
ammeter, voltmeter, wattmeter
Q. An RG-139/U rectangular waveguide is given to have dimensions a = 0.8636 mm and b = 0.4318 mm. Compute the theoretical and practical frequency ranges of operation for the guide.
short note on armature reaction
Explain the NAND Gates - Microprocessor? The NAND GATE is a AND gate with the output inverted. Consequently the outputs of a NAND gate would be the opposites of the outputs of a A
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