Question

What the relation of 1/c=1/c1+1/c2 hence find c​

Answer 1

`\frac 1c=\frac1{c_1}+\frac1{c_2}`

$\frac1c=\frac{c_1+c_2}{c_1c_2}$

$\implies c=\frac{c_1c_2}{c_1+c_2}$