Question 50: Magnetism and Matter

Question

An element $$\Delta l=\Delta x\hat{i}$$ is placed at the origin and carries a large current $$I=10 \mathrm{~A}$$. The magnetic field on the $$y$$-axis at a distance of $$0.5 \mathrm{~m}$$ from the elements $$\Delta x$$ of $$1 \mathrm{~cm}$$ length is:

Accepted Answer

$$\begin{aligned}
& B=\frac{u_0}{4 \pi} \frac{i d l \sin 	heta}{r^2} \
& \Rightarrow B=\frac{10^{-7} 	imes 10 	imes 10 \quad 	imes 1}{\frac{1}{4}}=4 	imes 10^{-8} \mathrm{~T}
\end{aligned}$$

Answer

$$10 	imes 10^{-8} \mathrm{~T}$$

Answer

$$8 	imes 10^{-8} \mathrm{~T}$$

Answer

$$4 	imes 10^{-8} \mathrm{~T}$$

Answer

$$12 	imes 10^{-8} \mathrm{~T}$$

Magnetism and Matter

An element $\Delta l=\Delta x\hat{i} is placed at the origin and carries a large current I=10 \mathrm{~A}. The magnetic field on the y-axis at a distance of 0.5 \mathrm{~m} from the elements \Delta x of 1 \mathrm{~cm}$ length is:

Choose the correct answer: