The core of transformer is laminated a. to reduce the loss of energy in the form of heat across the transformer
b. to reduce the voltage of AC
c. to decrease the voltage of AC
d. to change the maginetic flux​

A. to reduce the loss of energy in the form of heat across the transformer

Explanation:

The core of the transformer is laminated to minimise the energy as they interfere with the efficient transfer of energy from the primary coil to the secondary one. The eddy currents cause energy to be lost from the transformer as they heat up the core - meaning that electrical energy is being wasted as heat.

c) power lifting, will be your answer.

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