(a) With regard to the solenoids discussed in class: (i) Typically, when the solenoid is activated, is the plunger exten

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A With Regard To The Solenoids Discussed In Class I Typically When The Solenoid Is Activated Is The Plunger Exten 1 (34.77 KiB) Viewed 61 times

(a) With regard to the solenoids discussed in class: (i) Typically, when the solenoid is activated, is the plunger extended or retracted? (ii) What force moves the plunger when the solenoid is activated? (iii) What force causes the plunger to return to its at-rest position? B Material A Material B (b) From the hysteresis curves in Figure 4.1, determine which of the three materials has the [4%] most retentivity. Explain your reasoning, including a brief explanation of what the term magnetic retentivity means. Note: H= magnetic field intensity; B = flux density. H - Material C Figure 4.1 [1%] Material A Material B Material C [1%] [1%]