Answer: (2) Inductively linked
A transformer is a device used in the power transmission of electric energy. The transmission current is AC. It is commonly used to increase or decrease the supply voltage without a change in the frequency of AC between circuits. The transformer works on basic principles of electromagnetic induction and mutual induction.
- A transformer is used as a static device to transfer electrical energy from one circuit to another with the help of electromagnetic induction.
- The working principle of a transformer is based on the mutual induction between two or more windings. These windings allow electrical energy to get transferred between the circuits.
- The two windings of a transformer are Inductively Linked.