How can you tell if fuse 6.3 ah250vp is blown?

To determine if a 6.3 A 250 V fuse is blown, visually inspect the fuse for any signs of damage, such as a broken filament or discolored glass. You can also use a multimeter to check continuity; if the meter shows no continuity (infinite resistance), the fuse is blown and needs replacement. Additionally, if the device powered by the fuse is not functioning, it could indicate that the fuse has blown.