Leadership

Physics

Ten Standard

Test your understanding of this lesson Heating effect of current:-

1)
When I amp current passes through a resistance R ohm for T hours, the amount of heat produced will be
  • \(I^{2}RT\) joule
  • \(\frac{I^{2}RT}{4.2}\) calorie
  • \(3600I^{2}RT\) joule
  • \(3600I^{2}RT\) calorie
2)
The coil used in an electric heater is
  • copper
  • aluminum
  • nichrome
  • silicone
3)
The filament used in electric bulb is
  • coper
  • tungsten
  • silver
  • platinum
4)
Keeping the resistance and time of flow of current unchanged how many times the current need to increase for generation of 9 times of heat
  • 3 times
  • 9 times
  • 81 times
  • none of these
5)
An electric bulb is filled by
  • air
  • Nitrogen
  • Nion
  • Nitrogen & Argon
Hand draw

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