16:I[8216,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"BackButton"] 17:I[1553,["972","static/chunks/972-b28da0de92681928.js","47","static/chunks/47-a7f06e9eda1ac756.js","115","static/chunks/app/%5Bexam%5D/questions/%5Byear%5D/%5Bsubject%5D/%5Bchapter%5D/%5BquestionId%5D/page-7b6f0a12b9cc0206.js"],"QuestionViewer"] 15:T53b,{"@context":"https://schema.org","@type":"Quiz","name":"Mht Cet 2024 Moving Charges And Magnetism PYQ with Solution","url":"https://pyq-test-series-platform-alsjdcxu2-sameers-projects-41c5a71e.vercel.app/mht-cet/questions/2024/physics/moving-charges-and-magnetism/m4i0xchp","educationalLevel":"Entrance exam preparation","about":"Mht Cet / Physics / Moving Charges And Magnetism","hasPart":{"@type":"Question","name":"Mht Cet 2024 Moving Charges And Magnetism PYQ with Solution","text":"A long solenoid carrying a current produces magnetic field B along its axis. If the number of turns per cm are tripled and the current is made \\left(\\frac{1}{4}\\right)^{\\text {th }} then the new value of magnetic field will be","eduQuestionType":"mcq","acceptedAnswer":{"@type":"Answer","text":"C"},"comment":{"@type":"Comment","text":"The magnetic field inside a long solenoid is given by the formula: B = \\mu_0 n I where: B is the magnetic field, \\mu_0 is the permeability of free space, n is the number of turns per unit length, I is the current passing through the solenoid. Initially, we have the magnetic field B given by: B = \\mu_0 n I Now, the number of turns per unit length n is tripled, so the new turns per unit length is 3n . The current I is reduced to \\frac{1}{4}I . The new magnetic field B_{\\text{new}} is: B_{\\text{ne..."}}}18:T406,

The magnetic field inside a long solenoid is given by the formula:

$$ B = \mu_0 n I $$

where:

$ B $ is the magnetic field,

$ \mu_0 $ is the permeability of fre

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