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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(\dfrac{\mu_0 i}{4 R}\left[1-\dfrac{2}{\pi}\right]\) pointed into the page |
2. | \(\dfrac{\mu_0 i}{4 R}\) pointed into the page |
3. | \(\dfrac{\mu_0 i}{4 R}\) pointed away from the page |
4. | \(\dfrac{\mu_0 i}{4 R}\left[1-\dfrac{2}{\pi}\right]\) pointed away from the page |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(6.28 \times 10^{-4} ~\text{T} \) | 2. | \(6.28 \times 10^{-2}~\text{T}\) |
3. | \(12.56 \times 10^{-2}~\text{T}\) | 4. | \(12.56 \times 10^{-4} ~\text{T}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(10^{-1}~\text{T}\) | 2. | \(10^{-2}~\text T\) |
3. | \(10^{2}~\text T\) | 4. | \(10^{-3}~\text{T}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | a straight line | 2. | circular |
3. | elliptical | 4. | a plane |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA long solenoid of \(50~\text{cm}\) length having \(100\) turns carries a current of \(2.5~\text{A}\). The magnetic field at the centre of the solenoid is:
\(\big(\mu_0 = 4\pi\times 10^{-7}~\text{TmA}^{-1} \big)\)
1. \(3.4\times 10^{-4}~\text{T}\)
2. \(6.28\times 10^{-5}~\text{T}\)
3. \(3.14\times 10^{-5}~\text{T}\)
4. \(6.28\times 10^{-4}~\text{T}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA straight conductor carrying current \(I\) splits into two parts as shown in the figure. The radius of the circular loop is \(R\). The total magnetic field at the centre \(P\) of the loop is:
1. | zero | 2. | \(\dfrac{3\mu_0 i}{32R},~\text{inward}\) |
3. | \(\dfrac{3\mu_0 i}{32R},~\text{outward}\) | 4. | \(\dfrac{\mu_0 i}{2R},~\text{inward}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is \(B\). It is then bent into a circular coil of \(n\) turns. The magnetic field at the centre of this coil of \(n\) turns will be:
1. | \(nB\) | 2. | \(n^2B\) |
3. | \(2nB\) | 4. | \(2n^2B\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA wire carrying current \(I\) has the shape as shown in the adjoining figure. Linear parts of the wire are very long and parallel to \(X\)-axis while the semicircular portion of radius \(R\) is lying in the \(Y\text-Z\) plane. The magnetic field at point \(O\) is:
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology