Engineering, 31.08.2021 17:00 dwavy29
A negatively charged rod is brought close to a grounded metal sheet without touching. Two experiments are done:
Experiment A: The metal sheet is first disconnected from ground and then the charged rod is taken far away.
Experiment B: The charged rod is first taken far away and then the metal sheet is disconnected from ground.
Which statement is true regarding the net charge of the metal sheet at the end of the two experiments?
A: negative B: neutral
A: neutral B: negative
A: neutral B: positive
Answers: 2
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When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
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Engineering, 03.07.2019 14:10, BardiFan
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
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Engineering, 04.07.2019 19:10, phantomlizz3233
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
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A negatively charged rod is brought close to a grounded metal sheet without touching. Two experiment...
History, 01.09.2019 23:30
History, 01.09.2019 23:30
History, 01.09.2019 23:30
History, 01.09.2019 23:30