Question

Strength of Magnetic field produced by a current carrying solenoid depends on
A) the number of tunes in the solenoid.
B) strength of current in the solenoid.
C) nature of core material.

• A. a, b, c
• B. a, b
• C. a, c
• D. b, c

Answer 1

The correct option is A a, b, c

We know that;

By BIot-sawart law,

$\overrightarrow{B}=\frac{N{\mu }_0}{4\pi }\int \frac{Idl\times \overrightarrow{r}}{{\left|r^1\right|}^3}$

Where. $\overrightarrow{B}$ is magnetic field,

I is current

N is number of turns

${\mu }_0$=Permeability depending on nature of material.

Thus $\overrightarrow{B}$ is a function of $I,N,\mu$.