Assertion (A): | The electric bulbs glow immediately when switch is on. |
Reason (R): | The drift velocity of electrons in a metallic wire is very high. |
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. |
1. | \( {i}_{0}T\) | 2. | \( \dfrac{{i}_{0}T}{2}\) |
3. | \( \dfrac{{i}_{0}T}{3}\) | 4. | \( \dfrac{{i}_{0}T}{\sqrt{2}}\) |