can you help me with questions 1, 3, 5, 6, 7, 8, & 9 please?

13.5 Questions 1. Why do transformers need an alternating current to operate 8. Copy Table 1 into your notebook and find the missing continuously? k/u values. TAI 2. How can you tell the difference between a step-up and a Table 1 step-down transformer? krul 3. A student is discussing transformers and states that Step-up the voltage and the current both increase in a step-up or step- transformer. Explain why this is not possible. Kru Transformer Vo VS No down? 4. Suppose that you increase the number of windings on the 1 12 V 120 V 100 1.2 A secondary coil compared to the primary coil. What would you expect the effect on voltage and current to be? ku 2 110 V 600 100 150 mA 5. Would a device that has the same number of windings on 3 30 V 120 0.28 A 1.68 A both the primary coil and the secondary coil be classified as a transformer? Explain. kru 9. An AC adapter for a laptop has a transformer inside it. 6. Are transformers 100 % efficient? Explain. kru It will take a 120 V AC and step it down to 15.0 VAC. 7. The number of windings on the primary coil of a transformer Determine the ratio of primary windings to secondary is 1.5 times greater than on the secondary coil. The primary windings in the transformer. T/ coil has a current of 3.0 A and a voltage of 12.0 V. Determine the voltage and current on the secondary coil. Tal