Name: ID: B True/False Write "T" if true, "F" if false, and if false, correct the underlined to make the statement true. 20. The SI base unit for resistance is R_ 21. The phenomenon of some materials having a resistance of zero is called semiconductivity. 22. Sockets in the US have a voltage of 100 V and a current that alternates at 50 Hz. 23. As the temperature of a wire increases, its conductivity will increase. claease 24. If you increase the resistance of an appliance, the current flowing through it will increase. wire 25. The electrons in the battery-wire-light bulb circuit come from the battery. Fe = (9 *10 9/ Q, Q2 PEC orlle RZ Q V I R I V He = QEd F It p t w