PHYSICS

 Ans: Step down transformer. Secondary coil is made with thicker wire than primary coil wire. It means that more current is flowing through secondary coil. It indicates that secondary emf is lower than primary emf. Hence stepdown transformer 

Step up transformer increases the magnitude of alternating e.m.f.  As the power remains same , current should decrease as per the formula, power= emf x current. So the statement is TRUE.