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What is m in diffraction?
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Derive the torque equation of 3 φ I.M. under running condition.k) Explain production of R.M.F. in 3-phase I.M. when 3 φ supply is fed to it. Draw its phasor diagram.

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State the reasons of skewed rotor bars in 3 φ squirrel cage I.M.

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A single phase AC distributor AB 300 M long is fed from end A and is loaded as under.

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Explain the energy conservation technique “By improving power quality of I.M.”

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Define R.M.S. value and give its mathematical expression.

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A 3 φ I.M. has synchronous speed of 250rpm and 4% slip at full load. The rotor has a resistance of 0.02Ω/ph and stand still reactance of 0.15Ω/ph. Calculate i) The speed at which max torque is developed. ii) The ratio of maximum to F. L. torque. iii) The ratio of maximum to starting torque.

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What are the two points to distinguish between interference and diffraction fringes?

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What is the difference between single slit and double-slit diffraction?
Answer : The main difference between **single-slit** and **double-slit diffraction** lies in the number of slits involved and how the light waves interfere after passing through them. Here's a ... complexity of interference between the light waves from two slits, creating a sharper, more detailed pattern....

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What are the two factors of diffraction?
Answer : The two main factors that affect diffraction are: 1. **Wavelength of the wave**: Diffraction is more pronounced when the wavelength of the wave is similar to or larger than the size of the ... diffraction occurs more easily when the wavelength is long relative to the size of the gap or obstacle....

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What is the formula for diffraction of a double-slit?

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What is the difference between diffraction and interference?

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