MULTIPLE CHOICE: Write the letter that corresponds to the correct answer. 1. If both diameter of a wire and its length are quadrupled, what will happen to its resistance? a. It double. b. It remains the same. c. It decreases to one-fourth its original value. d. It increases to four times its original value. 2. Wet skin is said to have much less resistance that dry skin. This explains that the water is a/an a. conductor c. semiconductor b. insulator d. superconductor For number 3 to 4: A 2200 W electric stove operates on a 220 V line. 3. What current passes through the electric stove? a. 1A C. 10 A b. 5A d. 100 A 4. What is the resistance of the electric stove? a. 2.20 c. 22 0 b. 10 0 d. 220 0 5. The flow of positive charges per unit time is called a. alternating current c. direct current b. conventional current d. electron current