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The peak value of an a.c. of frequency 5...

The peak value of an a.c. of frequency 50 hertz is 14.14 ampere. Find the r.m.s. value of current. How much time will the current take in reaching from zero to maximum value ?

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PRADEEP-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-Exercise
  1. If the effective current in a 50 cycles a.c. cuicuit is 5 A, what is t...

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  2. The electric mains in a house are marked 220V-50Hz. Write down the equ...

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  3. The peak value of an a.c. of frequency 50 hertz is 14.14 ampere. Find ...

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  4. The effective value of current in a 50 cycle a.c. circuit is 5.0 A. Wh...

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  5. The electric current in a circuit is given by I = i0 (t/(tau)) for som...

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  6. The equation of alternating of alternating current for a cuicuit is gi...

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  7. A resistance of 40 Omega is connected to an source of 220 v, 50 Hz. Fi...

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  8. An alternating voltage given by E = 280 sin 50 pi t is connected acr...

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  9. A light bulb is rated 200 W for 220 V supply at 50 Hz. Calculate resi...

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  10. An alternating e.m.f. of peak value 350 V is applied across an ammeter...

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  11. A resistance of 20 Omega is connected to a source of alternating curre...

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  12. A 100 ohm iron is connected to a 110 V - 60 hertz wall plug. What is (...

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  13. A Sinusoidal voltage V = 200 sin 314 t r is applied to a resistor of 1...

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  14. An a.c. circuit consists of only an inductance of2 H. If the current i...

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  15. An inductor (L = 200 mH) is connected to an AC source of peak emf 210...

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  16. A pure inductor of self inductance 1 H is connected across in alternat...

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  17. How much inductance should be connected to 200 V, 50 c/s supply so tha...

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  18. Alternating e.m.f. of E = 220 sin 100 pi t is applied to a circuit con...

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  19. An inductance of negligible resistance, whose reactance is 22 ohm at 2...

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  20. A capacitor has a reactance of 100 Omega at 50 Hz Whatt will be its re...

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