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The peak vlaue of alternating current is...

The peak vlaue of alternating current is `5sqrt(2)`. The mean square value fo current will be

A

`5A`

B

`2.5 A`

C

`5sqrt(2)A`

D

None of these

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The correct Answer is:
To find the mean square value of the alternating current given its peak value, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Peak Value**: The peak value of the alternating current (I_peak) is given as \( 5\sqrt{2} \) amperes. 2. **Use the Formula for RMS Current**: The root mean square (RMS) value of the alternating current is calculated using the formula: \[ I_{RMS} = \frac{I_{peak}}{\sqrt{2}} \] 3. **Substitute the Peak Value**: Substitute the peak value into the formula: \[ I_{RMS} = \frac{5\sqrt{2}}{\sqrt{2}} \] 4. **Simplify the Expression**: The \(\sqrt{2}\) in the numerator and denominator cancels out: \[ I_{RMS} = 5 \text{ amperes} \] 5. **Conclusion**: The mean square value of the current, which is the RMS value, is therefore \( 5 \) amperes. ### Final Answer: The mean square value of the current is **5 amperes**. ---

To find the mean square value of the alternating current given its peak value, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Peak Value**: The peak value of the alternating current (I_peak) is given as \( 5\sqrt{2} \) amperes. 2. **Use the Formula for RMS Current**: ...
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROMAGNETIC INDUCTION-Example 1
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  3. The peak vlaue of alternating current is 5sqrt(2). The mean square val...

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  4. If reading of an ammeter is 10 A, the peak value of current is

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  5. For high frequency, a capacitor offers

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  6. Alternating current is transmitted to distant places at

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  7. In an a.c. Circuit the voltage applied is E=E(0) sin (omega)t. The res...

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  9. If L and R denote the inductance and resistance of a coil respectively...

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  11. A lamp consumes only 50% of peak power in an a.c. circuit. What is the...

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  13. The impedance of a circuit, when a resistance R and an inductor of in...

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  14. An inductive coil has a resistance of 100 Omega. When an AC signal of ...

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  15. A circuit contains a capacitor and inductance each with negligible res...

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  16. The instantaneous values of current and voltage in an AC circuit are g...

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  17. In a LCR circuit the P.D between the terminals of the inductance is 60...

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  18. In the non-resonant circuit, what will be the nature of the circuit fo...

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  19. The value of alternating emf E in the given circuit will be

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