Assertion (A): | The impedance of a capacitance increases as the frequency increases. |
Reason (R): | The charge and voltage across a capacitance are directly proportional to each other. |
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. | (A) is False but (R) is True. |
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1. | the current is always zero |
2. | the current has identical positive and negative fluctuations |
3. | the current is positive for exactly half the time and negative for the remaining time |
4. | the current may be positive, negative or zero (during the interval) |
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1. | glow brighter |
2. | glow dimmer |
3. | glow the same |
4. | first glow brighter, then dims gradually |
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1. | \(300~\text V\) | equal to
2. | \(300~\text V\) | less than
3. | \(300~\text V\) | greater than
4. | zero |
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1. | \(f_o = \dfrac{10^3 + 10^5}{2}\) Hz |
2. | \(f_o > \dfrac{10^3 + 10^5}{2}\) Hz |
3. | \(f_o < \dfrac{10^3 + 10^5}{2}\) Hz |
4. | \(f_o = {10^3 + 10^5}\) Hz |
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1. | \(\dfrac{V_r}{3}\) | 2. | \(\dfrac{2V_r}{3}\) |
3. | \(\dfrac{V_r}{2}\) | 4. | \(V_r\) |
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1. | \(2\) A | 2. | \(2\sqrt2\) A |
3. | \(\sqrt2\) A | 4. | zero |
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1. | zero | 2. | \(\sqrt 2 V_r \) |
3. | \(2 V_r\) | 4. | \(\dfrac{V_r}{\sqrt 2}\) |
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1. | \(\dfrac{\omega L}{R}\) | depends on the ratio
2. | \(\sqrt{(\omega L)^2+R^2}\) | depends on the quantity
3. | \(L\) and \(R,\) but not on \(\omega\) | depends on
4. | is independent of \(L,R,\omega\) |
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