Q. No.| (I) | at two adjacent vertices \(A,B\) |
| (II) | at two points \(A,C\) at the ends of a diagonal. |
| 1. | \(2\) | 2. | \(\dfrac12\) |
| 3. | \(\dfrac{1}{\sqrt2}\) | 4. | \(1\) |
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| 1. | a circle |
| 2. | a straight line |
| 3. | a circle or a straight line |
| 4. | a circle, a straight line, or a parabola |
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Which of the following is the possible magnetic field (in tesla)?
1. \(2\hat j\)
2. \(2\hat k\)
3. \(2\hat i+2\hat k\)
4. \(2\hat j+2\hat k\)
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| 1. | \(\dfrac{\mu_{0} i}{2 \pi d}\) | 2. | \(\dfrac{2\mu_{0} i}{2 \pi d}\) |
| 3. | \(\dfrac{\sqrt 3\mu_{0} i}{2 \pi d}\) | 4. | zero |
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1. \(\Large\frac{qBd}{2}\)
2. \(qBd\)
3. \(2qBd\)
4. \(\Large\frac{qBd}{4}\)
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| 1. | \(\dfrac{K}{a}\) | 2. | \(\dfrac{K}{b}\) |
| 3. | \(\dfrac{K}{a-b}\) | 4. | \(\dfrac{K}{a+b}\) |
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Two insulated current carrying wires lie along the \(x\) and the \(y\text-\)axis in the \(xy\text-\)plane, carrying identical currents \(I\). The magnetic field at the point \((d,-d)\) is:
| 1. | \(\text{Zero}\) | 2. | \(\dfrac{\mu_0I}{\pi d}\) |
| 3. | \(\sqrt2\cdot \dfrac{\mu_0I}{2\pi d}\) | 4. | \(\dfrac{\mu_0I}{2\pi (\sqrt2 d)}\) |
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| 1. | \(\pi du\) | 2. | \(2\pi du\) |
| 3. | \(\Large\frac{\pi du}{2}\) | 4. | \(\Large\frac{\pi du}{4}\) |
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| 1. | \(q\Phi\) | 2. | \(\dfrac{q\Phi}{2\pi}\) |
| 3. | \(\pi q\Phi\) | 4. | \(\dfrac{q\Phi}{\pi}\) |
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| 1. | \(\dfrac{5}{\sqrt3r}\) | 2. | \(\dfrac{5}{\sqrt3\pi r}\) |
| 3. | \(\dfrac{5}{r}\) | 4. | \(\dfrac{5}{\pi r}\) |
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