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The correct answer is B, a laminated core and a shading coil.
A key difference in an AC relay is the presence of a "shading coil". The purpose of this coil is to keep the relay on when the current drops to zero during phase change (note that in AC power the current and voltage are alternating in a sine wave around 50/60 times per second). The shading coil retains some magnetic energy and essentially holds the relay ON when the current drops to zero momentarily due to the AC waveform.
AC relays also have a laminated core to prevent losses due to eddy current heating.
Hello there!
Answer:
Have included productivity improvements (doubling the number of
deliveries for a speci²c time period), enhanced inventory management,
automation of picklists, better resource planning, and more e±ective reporting to
key stakeholders. Evolution’s CRM system can determine deliveries planned for
any future month and the amount of product in stock, helping Evolution reduce
stock holding by 40%. When a new patient is keyed onto system, tasks can be
generated for Evolution’s team to organize delivery ahead of time. The system
automatically generates a pick list for that patient from Evolution’s pharmacy.
Managers can see tasks 2 weeks ahead and can allocate resources accordingly.
Hoping this helps you! :D