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What is a double-pole switch?
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What is the purpose of a double-pole circuit breaker?

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What is the difference between single-pole and double-pole MCBs?

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How does a three-pole MCB function in a three-phase system?

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What is the purpose of a pole discordance protection scheme in generator circuit breakers?

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What is the purpose of a pole slipping protection scheme in synchronous motors?

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What is the purpose of a pole slip protection scheme in generators?

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What is the purpose of a pole discordance protection scheme in circuit breakers?

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How does a phase preference tripping scheme work in single pole tripping applications?

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How does a totem-pole PFC circuit improve efficiency?

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What is the difference between a totem-pole and open-collector output?

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Select insulating materials for following parts: (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

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State functions of the following parts of d.c motor: (i) Pole shoe (ii) Commutator (iii) Brushes (iv) Yoke.

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Explain phase shifting (production of rotating magnetic field) in shaded pole induction motor with neat diagram.

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Compare cylindrical rotor with salient pole rotor on any two points.

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Describe with neat sketch the working of shaded pole induction motor.

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

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What is the function of a circuit breaker failure protection scheme in double busbar arrangements?

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What is the difference between a single-balanced and double-balanced mixer?

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When a wire of resistivity r is stretched to double its length?

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How will the resistivity of a wire change if it is stretched to double its original length without loss of mass?

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When a wire of resistivity R is stretched to double its length?

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What are fringes in Young's double-slit experiment?

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What is the difference between Young's double-slit and single slit?

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What is the theory of Young's double-slit experiment?

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