1. Which of the following statements about transformers is false?
(a) Transformers work using ac current or dc current.
(b) If the current in the secondary is higher, the voltage is lower.
(c) If the voltage in the secondary is higher, the current is lower.
(d) If no flux is lost, the product of the voltage and the current is the same in the primary and secondary coils.
2. A 10-V, 1.0-A dc current is run through a step-up transformer that has 10 turns on the input side and 20 turns on the output side. What is the output?
(a) 10 V, 0.5 A.
(b) 20 V, 0.5 A.
(c) 20V, 1A.
(d) 10V, 1A.
(e) 0V, 0A.