Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): | Self-inductance is called the inertia of electricity. |
Reason (R): | It is on account of self-inductance that the coil opposes any change in current passing through it. |
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. |
The current (\(I\)) in the inductance is varying with time (\(t\)) according to the plot shown in the figure.
1. | 2. | ||
3. | 4. |
Statement I: | The magnetic field due to a very long current-carrying solenoid, at its centre, is inversely proportional to the radius of the solenoid, other things remaining constant. |
Statement II: | \(I\) is directly proportional to \(I^2.\) | The magnetic energy stored in a solenoid carrying a current
1. | Statement I is incorrect and Statement II is correct. |
2. | Both Statement I and Statement II are correct. |
3. | Both Statement I and Statement II are incorrect. |
4. | Statement I is correct and Statement II is incorrect. |
List-I | List-II |
(a) inductance \(\times\) current | (i) V |
(b) frequency \(\times\) capacitance | (ii) Wb |
(c) frequency \(\times\) magnetic flux | (iii) \(\Omega^{-1}\) |
(d) electric flux | (iv) V-m |
1. | a - (i), b - (iv), c - (ii), d - (iii) |
2. | a - (ii), b - (iii), c - (i), d - (iv) |
3. | a - (iii), b - (i), c - (ii), d - (iv) |
4. | a - (iii), b - (iv), c - (ii), d - (i) |