{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2025-05-05T14:50:10.917Z","dateModified":"2025-05-05T14:50:10.917Z","typicalAgeRange":"11-18","educationalLevel":"AP PGECET","assesses":"Electronics and Communication Engineering - Magnetostatics","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"Magnetostatics"},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Electronics and Communication Engineering"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":"AP PGECET"}],"name":"Quiz about Magnetostatics","about":{"@type":"Thing","name":"Electronics and Communication Engineering - Magnetostatics"},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About Magnetostatics","text":"Which of the following is not a source of magnetostatic fields?}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"Magnetostatic fields are produced by steady currents and permanent magnets. A time-varying electric field is associated with changing electromagnetic fields rather than magnetostatic ones."},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

A dc current in a wire

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":1,"encodingFormat":"text/markdown","text":"

A permanent magnet

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":2,"encodingFormat":"text/markdown","text":"

An electric field linearly changing with time

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

A charged disk rotating at uniform speed

","comment":{"@type":"Comment","text":"\"\""}}],"acceptedAnswer":{"@type":"Answer","position":2,"encodingFormat":"text/markdown","text":"

An electric field linearly changing with time

","comment":{"@type":"Comment","text":"Magnetostatic fields are produced by steady currents and permanent magnets. A time-varying electric field is associated with changing electromagnetic fields rather than magnetostatic ones."},"answerExplanation":{"@type":"comment","text":"Magnetostatic fields are generated by steady currents (such as a DC current in a wire) or magnetic materials like permanent magnets. A time-varying electric field can induce a changing magnetic field, but it does not generate a magnetostatic field. The last option is correct as it represents an electric field, not a magnetic field source."}}}]}

Which of the following is not a source of magnetostatic fields?

Show Hint

The Correct Option is C

Solution and Explanation

Questions Asked in AP PGECET exam