Direction: Read, analyze and solve the following word problems. 3. A copper wire (p=1.724 x 108 Qm) has a length of 30 m and a diameter of 2 mm. (a) If the power on the wire is 2 x 10 W, what is the current flowing on the wire? (b) How much current is required? 4. A 2.5-ampere current flows through a silver wire with a radius of 23 mm. The wire is powered by a 220 V electromotive force. (a) What is the length of the wire? (b) What is the power dissipated by the wire