and the graph of ac looks like a sine wave, which means the current flows to and fro, our household current changes directions 50 times a second; hence you can see 50hz written on most of our electrical equipment. the below videos help to revise the chapter electricity class 10 frequently...
Current electricity is the most common form of electricity that is used to power up devices and appliances. Learn the generation of current electricity and more.
Ques. Find the current density passing through a copper wire having a cross-section area of 15 mm² and the current flowing through it is 5 mA.(2 mark) Ques. How is the current density(J) related to conductivity? Explain in detail.(3 mark) Ques. What is the dimensional formula for ...
The power rating of an electrical equipment, such as an electric lamp or a geyser, is made up of two numbers: power (P) and voltage (V). Consider the following scenario: When an electric bulb is classified as 50W-220V, it signifies that it uses 50 W of...
Hint:Oersted discovered the relationship between electricity and magnetism. In his experiment he noticed that when a magnetic compass is placed near a current carrying wire, it produces a magnetic field around it which deflects the compass needle.Complete answer:According to...
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