in the mks or si system, 1 ampere-turn equals how many gilberts?
a. 1.256637
b. 1.256
c. 0.7905
d. 0.1555

Question

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": false, "concepts_used": [ "Ampere-turns", "Magnetomotive Force", "CGS System" ], "new_concepts": [], "current_concepts": [ "Ampere-turns", "Magnetomotive Force", "CGS System" ] } ## Define the units of magnetomotive force Using the *Magnetomotive Force* and *Ampere-turns* knowledge points $$ \begin{aligned} &\text{SI Unit: } \text{Ampere-turn } (\text{At})\ &\text{CGS Unit: } \text{Gilbert } (\text{Gb}) \end{aligned} $$ ## Convert ampere-turns to gilberts Using the *CGS System* knowledge point $$ \begin{aligned} 1 \text{ At} &= \frac{4\pi}{10} \text{ Gb} \ 1 \text{ At} &\approx 1.256637 \text{ Gb} \end{aligned} $$

a. 1.256637

b. 1.256

c. 0.7905

d. 0.1555

{ "subject": "Natural Science", "question_type": "Multiple Choice", "knowledge_point": [ "Natural Science", "Physics", "Electromagnetism" ] }

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Explanation:

Define the units of magnetomotive force

Convert ampere-turns to gilberts

Answer: