For a perfect gas, according to Boyle’s law (where p = Absolute pressure, v = Volume and T = Absolute temperature)
A. $$\frac{{\text{v}}}{{\text{T}}}$$ = constant, if p is kept constant
B. pv = constant, if T is kept constant
C. $$\frac{{\text{T}}}{{\text{p}}}$$ = constant, if v is kept constant
D. $$\frac{{\text{p}}}{{\text{T}}}$$ = constant, if v is kept constant
Answer: Option B
If the wire of uniform area of cross section is cut into two equal parts, the resistivity of each parts will be