Question

The magnetic induction field has the dimensions of

• A. Force
• B. Force constant
• C. Surface tension
• D. $\frac{\text{Surface tension}}{\text{Current}}$
• E. Force constant $\lambda$ current

Answer 1

Answer: (D)

$\because F=qvB$
$\therefore B=\frac{F}{qv}=\frac{F}{q\left(\frac{d}{t}\right)}=\frac{F}{Id}=\frac{T}{I}$
$\therefore B=\frac{\text{ Surfacc tension }}{\text{ Current}}$