What are phasa lines and neutral line in respect of a generator ?

The acidic, basic and neutral oxides respectively are :

The acidic, basic and neutral oxides respectively are :

The acidic, basic and neutral oxides respectively are :

What will happen if a bird touches both line and neutral wires of 240volts ?

The image of a point lying on a line l with respect to the line of symmetry l lies on _______.

In the figure , line l || line m and line n is the transversal. With respect to givne information find the value of a.