Physics

Problem

A long solenoid has

1000

turns per metre and carries a current of

2\,\text{A}

. A single circular loop of radius

5\,\text{cm}

carries the same current. What is the ratio

B_{\text{solenoid}} : B_{\text{loop}}

of the magnetic fields produced at their respective interior points? a)

10 : 1

50 : 1

100 : 1

1 : 100