The strength of an electromagnet increases with
...The strength of an electromagnet increases with
Increases in the number of turn of the coil
Decreases in current with the coil
Increases in the distance between the pole
Increases in current without the coil
Correct answer is A
No explanation has been provided for this answer.
In photoelectric effect, the number of electrode emitted per second from a metallic surface is ...
Which of the following statements about the mass and the weight of a body is not correct? its ...
Which of the following instruments has a pure tone? ...
All of the following frequencies are overtones of 320 Hz EXCEPT ...