FIGURE 23-6
-A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If the area of the loop increases at a rate of 3.0 × 10^-3 m²/s, what is the induced emf in the loop?

Question

FIGURE 23-6 FIGURE 23-6 -A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If the area of the loop increases at a rate of 3.0 × 10<sup>-3</sup> m<sup>2</sup>/s, what is the induced emf in the loop? A) 4.3 mV B) 0 mV C) 1.5 mV D) 1.7 mV E) 5.5 mV

FIGURE 23-6 -A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If the area of the loop increases at a rate of 3.0 × 10<sup>-3</sup> m<sup>2</sup>/s, what is the induced emf in the loop? A) 4.3 mV B) 0 mV C) 1.5 mV D) 1.7 mV E) 5.5 mV

-A conducting loop in the form of a circle is placed perpendicular to a magnetic field of 0.50 T. If the area of the loop increases at a rate of 3.0 × 10^-3 m²/s, what is the induced emf in the loop?

Quizplus · Accepted Answer

The induced emf (ε) is given by Faraday's law of electromagnetic induction: ε = -dΦ/dt, where Φ is the magnetic flux. Since Φ = B * A and B is constant, ε = B * dA/dt. Substituting B = 0.50 T and dA/dt = 3.0 × 10^-3 m²/s, we get ε = 0.50 * 3.0 × 10^-3 = 1.5 mV.

FIGURE 23-6 -A Conducting Loop in the Form of a Circle Is