1. | 2. | ||
3. | 4. |
\(\mathrm A.\) | hold the sheet there if it is magnetic. |
\(\mathrm B.\) | hold the sheet there if it is non-magnetic. |
\(\mathrm C.\) | move the sheet away from the pole with uniform velocity if it is conducting. |
\(\mathrm D.\) | move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar. |
\(\mathrm A.\) | the charge stored in it, increases. |
\(\mathrm B.\) | the energy stored in it, decreases. |
\(\mathrm C.\) | its capacitance increases. |
\(\mathrm D.\) | the ratio of charge to its potential remains the same. |
\(\mathrm E.\) | the product of charge and voltage increases. |
1. | \(P_1>P_3>P_2 \) | 2. | \(P_2>P_1>P_3 \) |
3. | \( P_1>P_2>P_3\) | 4. | \(P_3 > P_2>P_1\) |
1. | the energy density in electric field is equal to energy density in magnetic field. |
2. | they travel with a speed equal to \(\dfrac{1}{\sqrt{\mu_0~ \varepsilon_0}} .\) |
3. | they originate from charges moving with uniform speed. |
4. | they are transverse in nature. |
1. | \(\text{A}\) and \(\text{D}\) | 2. | \(\text{B}\) and \(\text{E}\) |
3. | \(\text{E}\) and \(\text{D}\) | 4. | \(\text{B}\) and \(\text{C}\) |
1. | \(-\dfrac x9\) | 2. | \(-4x\) |
3. | \(-\dfrac 49x\) | 4. | \(-x\) |