A circular coil enclosing an area of 103 cm^2 is made of 197 turns of copper wir

Question

A circular coil enclosing an area of 103 cm^2 is made of 197 turns of copper wire. The wire making up the coil has resistance of 4.0 , and the ends of the wire are connected to form a closed circuit. Initially, a 1.4 T uniform magnetic field points perpendicularly upward through the plane of the coil. The direction of the field then reverses so that the final magnetic field has a magnitude of 1.4 T and points downward through the coil. If the time required for the field to reverse directions is 0.10 s, what average current flows through the coil during that time?

______A

Explanation / Answer

we use the formula

= N ( /t) = IR

Plug in the values we get

197 * (0.02884/ 0.10 ) = I * 4.0 omhs

I = 14.2037 Ampere =============answer)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.