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SS1: PHYSICS – 3RD TERM

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  1. Production of Electric Current | Week 1
    6 Topics
    |
    1 Quiz
  2. Electric Current | Week 2
    5 Topics
    |
    1 Quiz
  3. Electrical Resistance of a Conductor | Week 3
    5 Topics
    |
    1 Quiz
  4. Particulate Nature of Matter | Week 4
    5 Topics
    |
    1 Quiz
  5. Crystalline and Non-crystalline Substances | Week 5
    3 Topics
    |
    1 Quiz
  6. Elastic Properties of Solids | Week 6 & 7
    4 Topics
    |
    1 Quiz
  7. Fluids at Rest & in Motion | Week 8 & 9
    6 Topics
    |
    1 Quiz
  8. Solar Collector
    3 Topics
    |
    1 Quiz



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Solar Energy:

Solar energy is obtained from the sun. This is achieved when a solar collector is used for harnessing solar energy which is later converted to electric current e.g. by using a device called a photocell.

A photocell consists of a cathode coated with a photosensitive material (light-sensitive metal surface) and an anode. The cathode is connected to the negative terminal of a battery and the anode to the positive terminal. When light falls on the cathode, electrons are emitted which are attracted to the anode, this flow of electrons completes the current and current flows, which is measured by a galvanometer.

photocell
Screen Shot 2020 09 27 at 5.10.49 PM
Photocell.

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