- 1(current)
Q. No.A system has two charges, \(q_\mathrm{A} = 2.5 \times 10^{-7}~\text{C}\) and \(q_\mathrm{B} = -2.5 \times 10^{-7}~\text{C}\), is located at points \(\mathrm{A}\): \((0,0,-15~\text{cm})\) and \(\mathrm{B}\): \((0,0,+15~\text{cm})\) respectively. The electric dipole moment of the system is:
| 1. | \(7.5\times 10^{-8}~\text{C-m}\) (along negative z-axis) |
| 2. | \(8.5\times 10^{-8}~\text{C-m}\) (along positive z-axis) |
| 3. | \(5.5\times 10^{-8}~\text{C-m}\) (along positive z-axis) |
| 4. | \(3.5\times 10^{-8}~\text{C-m}\) (along negative z-axis) |
72%
Subtopic: Electric Dipole |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn electric dipole with dipole moment \(4\times 10^{-9}~\text{Cm}\) is aligned at \(30^{\circ}\) with the direction of a uniform electric field of magnitude \(5\times 10^{4}~\text{NC}^{-1}\). The magnitude of the torque acting on the dipole is:
| 1. | \(2\times 10^{-5}~\text{N-m}\) | 2. | \(10^{-4}~\text{N-m}\) |
| 3. | \(10^{-5}~\text{N-m}\) | 4. | \(2\times 10^{-4}~\text{N-m}\) |
Subtopic: Electric Dipole |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a certain region of space, the electric field is along the \(z\text-\)direction throughout. The magnitude of the electric field is, however, not constant but increases uniformly along the positive \(z\text-\)direction, at the rate of \(10^{5}\) NC–1 per meter. What is the torque experienced by a system having a total dipole moment equal to \(10^{-7}~\text{C-m}\) in the negative \(z\text{-}\)direction?
| 1. | \(10^{-2}~\text{N-m}\) |
2. | \(0\) |
| 3. | \(10^{-1}~\text{N-m}\) |
4. | \(0.01~\text{N-m}\) |
68%
Subtopic: Electric Dipole |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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