Question

Why does a phuljhari require some heating before it sparks?

Answer 1

$\huge\mathfrak\red{Answer \: :-}$

Phuljhari need heating before it sparks to meet its ignition temperature.

In order to obtain maximum amount of the height, you must provide enough amount of heat.

Answer 2

Phuljhari requires some heating before it sparks to attain its ignition temperature.