12 What happens to water when its temperature reaches 4°C? A It becomes denser. C. Its volume will reduce. B. It becomes less dense. D. Its volume will not change. 13. What is the absolute zero temperature? C.0°C B. -32°F A-273°C 14. What happens to the temperature if more heat is added to a sample of boiling water in the stove at 1 atm? D. increases then decreases A decreases B. increases C. remains the same 15. Dry ice has a temperature of -110.2°F. What would its temperature be on the Celsius scale? D. -79.00 A -711.0 B. -198.0 C. -142.2 16. What is the electric current if a circuit has a resistance of 100 2 and voltage of 12.0 V? D. 25.0 A A 0.120 A B. 9.00 A C. 12.0 A 17. What is the electric current if a circuit has a resistance of 100 2 and a voltage of 6.00 V? A 0.0600 A B. 4.50 A C. 6.00 A D. 12.5 A 18. What is the voltage of a circuit that has a resistance of 6 kA2 and a current of 2 mA? A9V B. 10 V C. 11 V D. 12 V 19. What will happen to the current if the voltage is reduced to one half? B. doubled C. decreased by one half D. decreased by one fourth 20. Calculate the voltage if the current passing through the wire is 3 A, and has a resistance of 10 . A. 6V B. 30 V C. 75 V D. 150 V 21. What is the voltage across a 62 load when 3 A of current passes through it? A 2V B.IV C. 18 V D. 36 V 22. Which of the following properties of materials does NOT affect resistance? A. length B. thickness C. temperature 23. Ampere is a unit of what electrical quantity? D. strength of the material A current B. load C. resistance 24. What happens to the current across a circuit when the voltage is doubled while the resistance is held constant? D. voltage B. halved C. doubled 25. Which of the following statements is correct about the relationship of voltage and current? D. remains the same A. Current varies directly with voltage and resistance is changing. B. Current varies indirectly with voltage and resistance is changing. C. Current varies directly with voltage when resistance remains constant. D. Current varies indirectly with voltage when resistance remains constant. A tripled a A. tripled​