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Which is more dangerous in use a.c. or d...

Which is more dangerous in use a.c. or d.c.? Explain, why?

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Alternating current (a.c.) is more dangerous than direct current (d.c.) because peak value of.a.c. is more than the induced value.
Peak value of alternating voltage =` V_0= sqrt2 V_(rms)`
`V_0=sqrt2xx220=311.1` volt
In case of d.c., peak value of alternating voltage is equal to its indicated value.
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BETTER CHOICE PUBLICATION-ALTERNATING CURRENTS -SHORT ANSWERTYPE QUESTIONS
  1. Can a.c. be used for electrolysis? Why?

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  2. Can one have inductance without a resistance ? How about a resistance ...

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  3. Which is more dangerous in use a.c. or d.c.? Explain, why?

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  4. The frequency of a.c. is doubled, what happens to inductive reactance?

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  5. What is the capacitive reactance of a capacitor used in a circuit hav...

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  6. Discuss the behaviour of an inductor in d.c. and high frequency a.c. c...

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  7. An alternating e.m.f. is supplied to a pure resistance investigate the...

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  8. An alternating e.m.f. is supplied to a pure resistance investigate the...

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  9. An alternating e.m.f. is supplied to a pure inductor investigate the p...

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  10. Find a phase relation between current and voltage in an a.c. circuit c...

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  11. Show mathematically that in an a.c. circuit containing only inductance...

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  12. An alternate e.m.f. is applied to pure capacitance. Investigate the ph...

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  13. Finda phase relation between current and voltage in an a.c. circuit co...

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  14. Define terminal velocity and find an expression for it.

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  15. Derive the relation for mean value of alternating current.

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  16. Define mean value of an alternating current.

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  17. What is root mean square value of alternating current? Derive a relati...

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  18. Prove mathematically that the average power over a complete cycle of a...

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  19. Prove mathematically that the average power over a complete cycle of a...

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  20. Define impedance of an electric circuit. How it differs from ohmic res...

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