A 34-turn circular coil of wire has diameter 0.92 m. It is placed with its axis along the direction of the Earth's magnetic field of 41.0 µT and then in 0.200 s is flipped 180°. An average emf of what magnitude is generated in the coil?

An automobile with a radio antenna 1.0 m long generates an emf, V1, since it is traveling at 100.0 km/h in a location where the Earth’s horizontal magnetic field is 5.5×10−5T. At some time, the radio antenna halves in length and the car begins traveling at a quarter of the original speed. What is the ratio of the new emf   0.75 V1 0.125 V1 1 V1 0.5 V1

A 13.0 m long, thin, uniform steel beam slides north at a speed of 20.0 m/s. The length of the beam maintains an east-west orientation while sliding. The vertical component of the Earth's magnetic field at this location has a magnitude of 48.0 µT. What is the magnitude of the induced emf between the ends of the beam (in mV)? mV What If? The west end of the beam impacts and sticks to a pylon, causing the beam to rotate counterclockwise as viewed from above. While the beam rotates, what is the magnitude of the induced emf between the ends of the beam (in mV)? (Hint: use conservation of angular momentum to find the speed of the beam after the collision.) mV

An electric generator contains a coil of 100 turns of wire, each forming a rectangular loop 50.0 cm by 30.0 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 3.50 T and initially perpendicular to the coil's plane. What is the maximum value of the emf produced when the coil is spun at 1000 rev/min about an axis perpendicular to B? Give your answer in kV.

A 32-turn circular coil of wire has diameter 0.91 m. It is placed with its axis along the direction of the Earth's magnetic field of 42.0 µT and then in 0.200 s is flipped 180°. An average emf of what magnitude is generated in the coil?

Two moving rods of equal lengths (1.20 m) are moving as shown in the figure. The speed v1 = 1.10 m/s and the speed v2 = 2.00 m/s. If the magnetic field is uniform with a magnitude of 0.60 T, what is the magnitude of the average emf in the loop?

A square, single-turn coil 0.27 m on a side is placed with its plane perpendicular to a constant magnetic field. An EMF of 19 mV is induced in the winding when the area of the coil decreases at a rate of 0.11 m2/s. What is the magnitude of the magnetic field?

A 19-turn circular coil of wire has diameter 0.91 m. It is placed with its axis along the direction of the Earth's magnetic field of 51.0 µT and then in 0.200 s is flipped 180\deg. An average emf of what magnitude is generated in the coil? mV

A certain elastic conducting material is stretched into a circular loop of 5.7 cm radius. It is placed with its plane perpendicular to a uniform 1.0 T magnetic field. When released, the radius of the loop starts to shrink at an instantaneous rate of 75.0cm/s. What emf is induced in the loop at that instant in units of V?

A 500-turn circular loop 15.0 cm in diameter is initially aligned so that its axis is parallel to the Earth's magnetic field. In 2.77 ms the coil is flipped so that its axis is perpendicular to the Earth's field. If a voltage of 0.166 V is induced in the coil, what is the value of the Earth's magnetic field?