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A 220 V main supply is connected to a re...

A 220 V main supply is connected to a resistance of `100k Omega`. The rms current is

A

22 mA

B

2.2mA

C

220 mA

D

10 mA

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ALTERNATING CURRENT-EXERCISE - II
  1. The rms value of an alternating current, which when passed through a r...

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  2. A 220 V main supply is connected to a resistance of 100k Omega. The rm...

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  3. The peak value of an alternating emf is given by E= E(0) cosomegat is ...

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  4. The equation of an alternating voltage is V = 100 sin 100 pit volt. It...

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  5. The equation of the alternating voltage applied to our houses is e= (3...

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  6. Write the equation of an alternating emf of 120V, and its frequency 60...

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  7. An inductance of 0.2 H and resistance 100Omega are connected to an AC ...

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  8. The frequency for which a 5muF capacitor has a reactance of (1)/(1000)...

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  9. An alternating emf of e=200sin100pit is applied across a capacitor of ...

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  10. In a series circuit R= 300 Omega, L= 0.9 H, C = 2.0 muF " and " omega=...

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  11. In a series LCR circuit R = 10 Omega and the impedance Z = 20 Omega. T...

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  12. In an LCR series circuit, the voltages across R, L and C at resonance ...

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  13. A resistance of 10 Omega a capacitance of 0.1muF and an inductance of ...

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  14. The potential differences across the resistance, capacitance and induc...

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  15. An inductance of 1 mH and a charged capacitor capacitance of 10muF are...

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  16. An inductor of inductance 100mH is connected in series with a resistan...

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  17. The following series L-C-R circuit, when driven by an e.m.f. source of...

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  18. A series LCR circuit is connected to a source of alternating emf 50 V ...

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  19. In a circuit L,C and R are connected in series with an alternating vol...

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  20. The magnetic field energy in an inductor changes from maximum value to...

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