When a plastic rod is rubbed with wool the wool acquires a positive charge because?

When a plastic rod is rubbed with wool, electrons are transferred from the wool to the rod. This process leaves the wool with a deficiency of electrons, resulting in a positive charge. Meanwhile, the plastic rod, having gained these electrons, becomes negatively charged. This charge transfer is due to the differences in the materials' electron affinity, with wool having a stronger tendency to lose electrons compared to plastic.