Which diagram BEST represents a loud, high-pitched trumpet playing alone until a quieter, lower-pitched trombone joins in and then continues to play alone. *
Option 2
Option 1
Option 3
Option 4

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

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explanation: