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Why 220V AC is dangerous than 220V DC?...

Why 220V AC is dangerous than 220V DC?

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A fuse wire of radius 0.1 mm can withstand a maximum current of 1 A . What is the minimum radius of a fuse wire , made of the same meatal , that should be used to run a 220 V - 100 W heater using a 220 V mains ?

Why is C_P greater than C_V ?

Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?

A 110V -550W hearter is to be used with a 220V mains. What is the minimum value of resisrance that should with the heater? Find out the power of the whole circuit in that situation.

If three bulbs of ratings 60W, 75W and 100 W are connected to 220 v mains in series, then which bulb will burn most brightly?

Calculate electric current passing through 60W - 220V bulb. Find the resistance of the filament.

What is be the strength of current through a heater coil if a 220 V-0.5 kWh heater is used in 220 V line ?

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UNITED BOOK HOUSE-MODEL PAPER SET-16-EXERCISE
  1. An electron of H1^1atom is on the 4th excited state. How many spectrum...

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  2. Find out the binding energy- of the, nuclens t Fe26^56[Fe^56]=55.93493...

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  3. State the Gauss’s theorem. Findout the expression for electric field’ ...

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  4. Give the definition of electric potential.

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  5. What is the magnitude of electric field necessary to just support a wa...

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  6. A charged capacitor shares its charge with another-capacitor of capac...

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  7. State the Ampere’s circuital law Obtain for the magnetic field at the ...

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  8. A light of 5000overset@A is incident on the double slit and a fringe i...

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  9. For a transparent crystal, the critical angle is 30^@.What will be th...

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  10. Proof that, the de Broglie, wavelength for an electron moving through ...

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  11. Write the radioactive disintegration Law. 3/4th of a radioactive eleme...

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  12. Draw the truth table for NOR gate.

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  13. What do you mean by depletion region? Why with rise of temperature,the...

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  14. A Cu wire of cross sectional area 1mm^2 is carying current 0.21A. What...

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  15. If the mains rating is, ,220V, 50Hz then what is the expression for in...

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  16. Why 220V AC is dangerous than 220V DC?

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  17. Magnetic flux passing through a coil is initially 4xx10^-4 Wb. It redu...

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  18. For any LCR circuit L = 0.405H and C= 25muF. If the resistance is zero...

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  19. A transformer is active between the voltage 230V. If the turn ratio of...

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  20. If in a plano-convex lens, the radius of curvature of the convex surfa...

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