A square coil of wire of side 2.00 cm is placed in a uniform magnetic field of m

Question

A square coil of wire of side 2.00 cm is placed in a uniform magnetic field of magnitude 1.75 T directed into the page as in the figure shown below. The coil has 40.0 turns and a resistance of 0.780 ?. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following.
A square coil of wire of side 2.00 cm is placed in a uniform magnetic field of magnitude 1.75 T directed into the page as in the figure shown below. The coil has 40.0 turns and a resistance of 0.780 ?. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following.

(a) the magnitude of the average emf induced in the coil during this rotation

______mV

(b) the average current induced in the coil during this rotation

_______mA

Explanation / Answer

Area = Side*Side = 0.02*0.02 = 4*10-4 m2

B = 1.75 T

= N * B * area = 40 * 1.75 * 4 * 10-4

= 280 * 10-4 = 0.028

EMF = /t = 0.028 / 0.335 = 0.0836 V

Current = EMF / R = 0.107 A

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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