Two metal wires all given which among this
two wires x and y I have more resistance 2
jsustify your answer.
coil to
Answers
Answer:
Two wires X and Y are of equal length and have equal resistances.
X - R₁ & Y - R₂
R₁ = ρ₁ L₁ /A₁
R₂ = ρ₂ L₂ /A₂
R₁ = R₂
L₁ = L₂ = L
=> ρ₁ L /A₁ = ρ₂ L /A₂
=> ρ₁ /A₁ = ρ₂ /A₂
=>ρ₁/ρ₂ = A₁ /A₂
ρ₁ > ρ₂
=> A₁ > A₂
Wire X is thicker
While Diluting an acid , if we add water in acid then it will make very much concentrated acidic solution which may boil and cause harm to the person performing actions.
Thats why acid is added in water
You have four solutions A, B, C and D. The pH of solution A is 6, B is 9, C is 12 and D is 7.
The pH scale ranges from 0 to 14.
pH of 7 is neutral. A
pH less than 7 is acidic. A
pH greater than 7 is basic.
A is most acidic
C is most basic
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Explanation: