A wire loop of radius 0.250 m is placed in a uniform magnetic field of magnitude 0.740 T. The field is directed perpendicular to the plane of the loop. If the area of the loop increases at a rate of area 1.50 × 10^–3 m2/s, what is the magnitude of the emf induced in the coil?

a. 1.11 mV
b. 3.00 mV
c. 0.218 mV
d. 0.589 mV


a

Physics & Space Science

You might also like to view...

Phase Angles: An series circuit consists of an ac voltage source, a resistor of resistance 810 ?, and an inductor. (There is no capacitance in the circuit.) The current amplitude is 0.40 A, and the phase angle between the source voltage and the current has magnitude 11°. (a) Does the source voltage lag or lead the current?(b) What is the voltage amplitude of the source?

What will be an ideal response?

Physics & Space Science

How big was the Virgo Cluster in size?

A.) 10^19 m. B.) 10^30 m. C.) 10^24 m. D.) 10^53 m. E.) 10^44 m.

Physics & Space Science

A wheel rotating about a fixed axis has an angular position given by ? = 3.0 ? 2.0t3, where ? is measured in radians and t in seconds. What is the angular acceleration of the wheel at t = 2.0 s?

a. ?1.0 rad/s2 b. ?24 rad/s2 c. ?2.0 rad/s2 d. ?4.0 rad/s2 e. ?3.5 rad/s2

Physics & Space Science

Doubling the mass per unit length of a guitar string will result in changing the wave speed in the string by what factor?

a. 1.41 c. 0.71 b. 1.00 (i.e., no change) d. 2.00

Physics & Space Science