MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A long straight wire of radius x carries a steady current I. The current is uniformly distributed across its cross section. Calculate the ratio of the magnetic field at \(\frac {x}{4}\) and 8x. |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» D. 1 | |
| 2. |
Which law can ampere’s circuital be derived from? |
| A. | Gauss Law |
| B. | Newton’s Law |
| C. | Kirchhoff’s Law |
| D. | Biot-Savart Law |
| Answer» E. | |
| 3. |
The angle at which a charged particle moves through a magnetic field with a velocity, having zero magnetic force is 180o. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What is the magnetic field inside a pipe? |
| A. | Unity |
| B. | Infinity |
| C. | Zero |
| D. | Two |
| Answer» D. Two | |
| 5. |
Identify the expression for ampere’s circuital law from the following? |
| A. | ∮ B .dl = μ0I |
| B. | ∮ B .dl = \( \frac {\mu_0}{I}\) |
| C. | ∮ B .dl = 2μ0I |
| D. | ∮ B .dl = 4μ0I |
| Answer» B. ∮ B .dl = \( \frac {\mu_0}{I}\) | |