General exam question G6A02

WhyAn advantage of batteries with low internal resistance is that they can deliver high discharge current. Low internal resistance means the battery itself drops less voltage as current is drawn from it, which lets it deliver high discharge currents without its terminal voltage sagging excessively, answer B. Internal resistance by itself doesn't determine service life, terminal voltage, or recharge speed, those depend on the cell chemistry and charging circuit, not primarily on internal resistance.