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Class X CBSE Physics Question Bank - Electricity

Question Bank from ELECTRICITY for Class X CBSE Physics

I. Very Short Answer Type Questions

  1. What is the SI Unit of electric Potential?
  2. What do you mean by the statement; "The electric potential between the points A and B is 1 V"?
  3. There are two electric bulbs, one marked 60W 220V and the other marked 100W 220V. Which one of the two has a higher resistance?
  4. Of the two; a toaster of 1 kW and an electric heater of 2 kW, which has higher resistance?
  5. Name a metals which offers higher resistance to the passage of electricity than copper.
  6. Calculate the ratio of resistances of a 50W bulb and a 25 W bulb.
  7. Why is tungsten preferred to make the filament of an incandescent lamp?
  8. A wire of resistance 10 Ω is bent in the form of a circle. What is the effective resistance between the two points at the ends of any one of the diameter of the circle?
  9. ........... To be continued
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