Question
Consider the following statements related to thermal
electricity: 1. The electrical current in an electric circuit is due to the flow of electrons. 2. In most conditions, the electrical current is the flow of positive charge. Which of the following statements are correct?Solution
• Statement 1 is correct because electricity is indeed due to the movement of electrons in an electrical circuit. • Statement 2 is incorrect because, in most cases, the flow of electric current is the movement of electrons, not positive charges. In metals, electrons move towards the positive terminal, creating a current. • Therefore, the correct answer is (a) only statement 1 is correct.
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Simplify the expression -:
The main folder on a storage device is known as
If sec x - tan x = 1/3, find sec x + tan x:
The simplified value of (452 x 452 x 452 – 356 x 356 x 356)/(452 x 356 + 452 x 452 + 356 x 356) is:
