In a transformer, two coils are wound around a toroidal iron core. Answer True or False. True A transformer is heavy because of the copper coils. True The transformer can use direct current, but the performance is better with alternating current. True If the primary voltage is constant, the secondary voltage is alternating. True A transformer is heavy because of the iron core. False If the primary voltage is constant, the transformer will not function. True If the primary voltage is alternating, the secondary voltage is constant. False The purpose of any transformer is to produce higher voltage.
A transformer is an electrical device that is used to transfer electrical energy between two or more circuits through electromagnetic induction. It consists of two or more coils of wire, known as windings, which are wound around a common magnetic core, typically made of iron or other magnetic materials.
The winding connected to the input voltage source is known as the primary winding, and the winding connected to the output load is known as the secondary winding. When an alternating current (AC) flows through the primary winding, it creates a changing magnetic field in the core. This changing magnetic field induces a voltage in the secondary winding, which can be of a different magnitude depending on the turns ratio between the windings.
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