- 1(current)
Q. No.Eddy currents can be minimised by:
| 1. | reducing relative motion between the core and magnet in an electric motor |
| 2. | by making the core of thin laminations |
| 3. | by increasing the conductor cross-sectional area |
| 4. | both (1) and (2) are correct |
Subtopic: Â Eddy Current |
 79%
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements choose the correct answer from the options given below:
| Assertion (A): | A bar magnet is dropped into a long vertical copper tube. Even taking air resistance as negligible, the magnet attains a constant terminal velocity. If the tube is heated, the terminal velocity gets increased. |
| Reason (R): | The terminal velocity does not depend on eddy current produced in copper tube. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Eddy Current |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
The slotting processes in a metallic sheet results in:
| 1. | The increase of the resistance in the path for circulation of current. |
| 2. | Decrease in the strength of eddy current. |
| 3. | A feeble in the electromagnetic damping. |
| 4. | All of these |
Subtopic: Â Eddy Current |
 82%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements choose the correct answer from the options given below:
| Assertion (A): | Iron loss is minimized by using a laminated core. |
| Reason (R): | Lamination of core restricts eddy current. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Eddy Current |
 90%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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- 1(current)
Q. No.
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