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Muskan Kumawat
4 May 2019 5:07 AM
If one plate of a parallel plate capacitor is charged to positive charge the other plate is charged to?
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A coupling magnetic field must react with
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(i) electrical system in order to extract energy from mechanical system
(ii) mechanical system in order to extract energy from mechanical system
(iii) electrical system in order to extract energy from electrical system
(iv) mechanical system in order to extract energy from electrical system
(v) electrical or mechanical system for electro-mechanical energy conversionFrom the above, the correct statements are
The developed electromagnetic force and/or torque in electromechanical energy conversion systems, acts in a direction that tends to ___________
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(i) increase the co-energy at constant flux
(ii) increase the co-energy at constant mmf
(iii) decrease the stored energy at constant mmf
(iv) decrease the stored energy at constant flux
Which of the above statements are correct?In an electro-mechanical energy conversion device, the coupling field on the(i) electrical side is associated with emf and current
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(ii) electrical side is associated with torque and speed
(iii) mechanical side is associated with emf and current
(iv) mechanical side is associated with torque and speedRelative density of aluminium is roughly _______ of steel
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