Question
Consider the following statements about static
electricity: (I) It is the electricity built up on the surface of a substance. (II) It is generated by power plants and batteries. (III) Static electricity is uncontrolled.Solution
Static electricity is the buildup of an electric charge on the surface of objects, which typically occurs through contact or friction between materials. Unlike current electricity, it is not generated by power plants or batteries and is often uncontrolled, leading to sudden discharges like sparks.
- If p = 40 - q - r and pq + r(p + q) = 400, then find the value of (p² + q² + r²).
A takes 8 hours more than the time taken by B to cover a distance of 160 km. If A doubles his speed. he takes 3 hours more than B to cover the same dist...
If x4 + x3 + x2 + x + 1 = 0, then find the value of x1525 + x720 + 14 + x320 =?
What value should come in place of question mark (?) in the following question. (You need not to calcualte the exact value)
(36.004 + 34.997)
(a+2 )² + (b-5)² + (c+3)² = 0
Find the value of √ (a + b + c) ?
...- If (x - y) = 4, then find the value of (x³ - y³ - 12xy).
(x – 4)2 + (y + 3) 2 + (z – 5) 2 = 0, then find the value of 2x + 3y – z.
If (a + b + c) = 9, find (a – 4)3 + (b – 2)3 + ( c – 3)3 – 3(a – 4 ) (b – 2 ) (c &n...
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