In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________

The correct answer is Is lowered.

In a double-tuned circuit, the mutual inductance between the two tuned circuits determines the coupling between them.

If the mutual inductance is decreased, the coupling between the circuits is weakened, resulting in a lower peak of the resonance curve.

This happens because reduced coupling limits the transfer of energy between the circuits, thereby lowering the amplitude of the resonance.

The other options do not accurately describe the effect of decreased mutual inductance on the resonance curve.