which changes will cause an increase in the magnetic field of a solenoid? check all that apply. using more…

which changes will cause an increase in the magnetic field of a solenoid? check all that apply. using more wire loops using fewer wire loops using a larger current using a smaller current increasing the spacing between loops decreasing the spacing between loops

which changes will cause an increase in the magnetic field of a solenoid? check all that apply. using more wire loops using fewer wire loops using a larger current using a smaller current increasing the spacing between loops decreasing the spacing between loops

Answer

Brief Explanations:

The magnetic - field strength of a solenoid is given by $B=\mu_0 nI$, where $n$ is the number of turns per unit length ($n=\frac{N}{L}$, $N$ is the total number of turns and $L$ is the length of the solenoid), $I$ is the current, and $\mu_0$ is the permeability of free - space. Using more wire loops increases $N$, thus increasing $n$ (if $L$ is constant). A larger current $I$ directly increases $B$. Decreasing the spacing between loops increases $n$ (since $n=\frac{N}{L}$ and reducing the spacing effectively reduces $L$ for a fixed $N$).

Answer:

using more wire loops, using a larger current, decreasing the spacing between loops