I think is True! Is the best answer. Because the trumpet it make them sounds like the lips with the musician and it vibrate.
Current always returns to the negative terminal.
<u>Explanation</u>:
Current flows from a positive to a negative terminal. It is due to the flow of negative electrons to positive side. The current flows from a high potential to a low potential. There is high concentration of electrons at the positive terminal and low concentration at the negative terminal. When the circuit is complete the electrons move from a high concentration to low concentration i.e; from positive terminal to negative terminal.
Answer:
True.
Explanation:
The kinetic energy and potential energy are equal when an objects falls as its potential energy is converted into kinetic energy.
Explanation:
The peak emf in an AC generator is given by :
Here,
N is number of turns in the generator
A is area of the coils
B is magnetic field
is angular frequency
It is clear that the peak emf in an ac generator depends on :
- The number of turns in the generator
- Area of coils
- Magnetic field
