In a transformer, two coils are wound around a toroidal iron core. Answer True or False. True False If the primary voltage is alternating, the secondary voltage is constant. True False The iron core is built up of thin slices of iron. True False If the primary voltage is constant, the secondary voltage is constant and nonzero. True False The transformer can use direct current, but the performance is better with alternating current. True False A transformer is heavy because of the copper coils. True False The purpose of any transformer is to produce a lower voltage. True False If the primary voltage is constant, the transformer will not function.

Can you explain, please?