A circular coil of radius 0.120 m contains a single turn and is located in a constant magnetic field of magnitude 0.220 T. The magnetic held has the same direction as the normal to the plane of the coil. The radius increases to 0.330 m in a time of 0.0700 s. (a) Determine the magnitude of the emf induced in the coil. (b) The coil has a resistance of 0.610 Q. Find the magnitude of the induced current. (a) Number i (b) Number i Units Units V A

A square coil of wire of side 3.20 cm is placed in a uniform magnetic field of magnitude 2.25 T directed into the page as in the figure shown below. The coil has 33.5 turns and a resistance of 0.780 2. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following. Rotation axis (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 x Xx X x xx x

A wire loop of radius 0.30 m lies so that an external mag- netic field of magnitude 0.30 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 1.5s. Find the magnitude of the average induced emf in the loop during this time

A circular coil of radius 0.120 m contains a single turn and is located in a constant magnetic field of magnitude 0.220 T. The magnetic field has the same direction as the normal to the plane of the coil. The radius increases to 0.330 m in a time of 0.0700 s. (a) Determine the magnitude of the emf induced in the coil. (b) The coil has a resistance of 0.610 Q. Find the magnitude of the induced current. (a) Number i (b) Number i Units Units

A magnetic field of 0.080 T is in the y-direction. The velocity of wire segment S has a magnitude of 78 m/s and components of 18 m/s in the x-direction, 24 m/s in the y-direction, and 72 m/s in the z-direction. The segment has length 0.50 m and is parallel to the z-axis as it moves. (a) Find the motional emf induced between the ends of the segment. (b) What would the motional emf be if the wire segment was parallel to the y-axis?

A circular wire coil with 33 turns and radius 2.34 cm is placed in a uniform magnetic field of strength 5.04 T, directed perpendicular to the plane of the wire loops. Over a period of 1.34 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time?     0.214 V     0.171 V     0.257 V     0.300 V

A square coil of wire of side 3.30 cm is placed in a uniform magnetic field of magnitude 2.50 T directed into the page as in the figure shown below. The coil has 37.5 turns and a resistance of 0.780 Ω. 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 (b) the average current induced in the coil during this rotation

A circular wire coil with 12 turns and radius 3.92 cm is placed in a uniform magnetic field of strength 6.07 T, directed perpendicular to the plane of the wire loops. Over a period of 2.36 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time?

An emf is induced by rotating a 1070 turn, 20.0 cm diameter coil in the Earth's 4.95 ✕ 10−5 T magnetic field. What average emf (in V) is induced, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to the field in 10.0 ms?