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The force between two wires 1 metre apart and each carrying 1 amp is 2 x 10-7 Newtons when in a vacuum (or in practice, air).However, it is found experimentally that the force is different if the wires are embedded in other materialsConsequently it is necessary to introduce a further parameter, known as the 'relative permeability', µr, so that the force on a wire of length l is:
Where µo = 4µ x 10-7 Henrys/metre and µris a constant for a given material known as the relative permeability. It takes account of the effect that the medium has on the forceNote that the relative permeability is a dimensionless quantity that can be greater or less than unity.
Q. For the 4-bit D/A converter of Figure with V ref =-5 V, determine the range of analog output voltage and the smallest increment. Ans. The binary input range is from 0
its defination and mathematical expression if any
Generation ofwide-band FM can be done by variousmeans.However, only themost common and conceptually the simplest one, known as the direct method, is considered here. It employs a
Q. Write short note on Quantization? Quantization: This is first step in PCM. Total amplitude range of the modulating signal is divided into a number of standard levels calle
What is the properties and application of iron?
i want to know the all the three jfet in present and future use and desing for each component
Discuss Stepper motor interfaced to the 82C55. A stepper motor rotates into steps in response to digital pulse input. There shaft of the motor rotates in equivalent increments
Hysteresis loss least depends on (A) Frequency. (B) Magnetic field intensity. (C) Volume of the material. (D)Grain orientation of material.
Explain isolated I/O scheme. In I/O mapped I/O scheme the addresses allocated to memory locations can also be assigned to I/O devices. Because the same address may be assigned
The reversibility principle of electrical machines states that an electrical machine can be used to operate either as a motor, converting electrical to mechanical energy, or as a g
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