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The drift velocity of electrons in a con...

The drift velocity of electrons in a conducting wire is of the order of 1 mm/s, yet the bulb glows very quickly after the switch is put on beause

A

The random speed of electons is very high, of the order of `10^(6)m//s`.

B

The electrons transfer their energy very quickly through collisions

C

Electric field is set up in the wire very quickly, producing a current through each cross section, almost instantaneously.

D

All of above

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The correct Answer is:
C
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RESONANCE-CURRENT ELECTRICITY-Exercise-1 (Part-2)
  1. The drift velocity of electrons in a conducting wire is of the order o...

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  2. When electric field (vec(E)) is applied on the ends of a conductor, th...

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  3. The potential difference applied to an X-ray tube is 5 kV and the curr...

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  4. A electric current passes through non uniform cross-section wire made ...

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  5. A piece of copper and another of germanium are cooled from room temper...

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  6. All the edges of a block with parallel faces are unequal. Its longest ...

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  7. In an electric circuit containing a battery,the charge (assumed positi...

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  8. If internal resistance of a cell is proportional to current drawn from...

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  9. In which of the above cells, the potential difference between the term...

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  10. A resistor of resistance R is connected to a cell internal resistance ...

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  11. In the part of circuit shown in figure-3.364

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  12. Find the current flowing through the resistance R(1) of the circuit sh...

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  13. Find the current flowing through the resistance R(1) of the circuit sh...

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  14. In the figure shown the current flowing 2 R is:

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  15. Find the current through the 10(Omega)resistor shown in figure.

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  16. The efficiency of a cell when connected to a resistance R is 60 %. Wha...

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  17. Two coils connected in series have resistance of 600K Omega and 300 Om...

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  18. Two coils connected in series have resistance of 600K Omega and 300 Om...

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  19. Each resistance shown in the network is in ohm. Current through the re...

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  20. Two electic bulbs marked 25 W -220 V and 100 W - 220 V are connected i...

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