Q. No.
| 1. | force along +ve \(y\text-\)axis |
| 2. | force along -ve \(y\text-\)axis |
| 3. | zero force but a clockwise torque |
| 4. | zero force but an anticlockwise torque |
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| 1. | will attract each other |
| 2. | will repel each other |
| 3. | will not exert any force on each other |
| 4. | may attract or repel each other depending on how they are brought together |
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| 1. | \(\dfrac{1}{r}\) | 2. | \(\dfrac{1}{r^2}\) |
| 3. | \(\dfrac{1}{r^3}\) | 4. | \(\dfrac{1}{r^4}\) |
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| 1. | increases | 2. | decreases |
| 3. | remains unchanged | 4. | vanishes completely |
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| 1. | \(\dfrac{\pi}{\mu_0}\left(B_eR^3\right )\) | 2. | \(\dfrac{2\pi}{\mu_0}\left(B_eR^3\right )\) |
| 3. | \(\dfrac{4\pi}{\mu_0}\left(B_eR^3\right )\) | 4. | \(\dfrac{2}{\mu_0}\left(B_eR^3\right )\) |
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| 1. | \(B^{-3}\) | 2. | \(B^{-2}\) |
| 3. | \(B^{-1/2}\) | 4. | \(B^{-1/3}\) |
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| 1. | \(\dfrac{r_1}{r_2}=\dfrac{P_1}{P_2}\) |
| 2. | \(\left(\dfrac{r_1}{r_2}\right)^2=\dfrac{P_1}{P_2} \) |
| 3. | \(\left(\dfrac{r_1}{r_2}\right)^3=\dfrac{P_1}{P_2} \) |
| 4. | none of the above is true. |
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| 1. | \(6 \times 10^{-4}\) T | 2. | \(1.5 \times 10^{-4}\) T |
| 3. | \(3 \sqrt2 \times 10^{-4}\) T | 4. | \({\dfrac 3 {\sqrt 2}}\times 10^{-4}\) T |
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1. \(3 \times 10^{-5}\) N-m
2. \(30\) N-m
3. \(3 \times 10^{-3}\) N-m
4. \(3 \times 10^{-2}\) N-m
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| 1. | \(A\) |
| 2. | \(B\) |
| 3. | neither \(A\) nor \(B,\) since both have same energy |
| 4. | the two situations can't be compared as one is repulsive, the other attractive |
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