What does the commutator do in an electric motor? On DC and most AC motors the purpose of the commutator is to insure that the current flowing through the rotor windings is always in the same direction, and the proper coil on the rotor is energized in respect to the field coils. What are the […]
How do you calculate projectile?
Is infrared reflected by mirrors?
Is infrared reflected by mirrors? Do mirrors reflect only visible lights, or do they reflect light of other frequencies (if so then which types–x-ray, infrared, gamma, etc)? Yes and no, a normal mirror reflects visible light and likely near IR and UV, but it’s not optimized for anything past that. Do Humans give off infrared […]
What is mean by change of season?
What is mean by change of season? : the change from winter to spring, spring to summer, etc. What is another word for season? What is another word for season? period time active period autumn division fall interval juncture occasion opportunity What’s a season? A season is a period of the year that is distinguished […]
What is the relation between electric field and distance?
What is the relation between electric field and distance? This is known as an inverse square law. Electric field strength is location dependent, and its magnitude decreases as the distance from a location to the source increases. And by whatever factor the distance is changed, the electric field strength will change inversely by the square […]
Which of the following properties gets smaller as the strength of intermolecular forces increases?
Which of the following properties gets smaller as the strength of intermolecular forces increases? As the strengths of intermolecular forces increase, surface tension, viscosity, melting point and boiling point increase, while vapor pressure decreases. Molecular solid: Made up of discrete covalently bonded molecules held together in the solid phase by weaker forces (LD, dipole, or […]
What are 3 types of observation?
What are 3 types of observation? When it comes to observational research, you have three different types of methodologies: controlled observations, naturalistic observations, and participant observations. Let’s quickly look at what each type of observation includes, how they differ, and the strengths and weaknesses of each type of observation. What are the 2 main types […]
What is the difference between a Class 1 and Class 2 transformer?
What is the difference between a Class 1 and Class 2 transformer? Class 1 transformers with an output that does not exceed 30 volts and 1,000 volt-amps. Class 2 refers to a transformer that delivers 100VA or less with a maximum output voltage of 30VAC or less. What is a Class 2 power unit? Class […]
What are the 5 incidental motions?
What are the 5 incidental motions? Robert’s Rules of Order Newly Revised lists the following incidental motions: appeal the decision of the chair, consideration by paragraph or seriatim, division of a question, division of the assembly, motions relating to nominations, motions relating to methods of voting and the polls, objection to the consideration … What […]