just answers please working is not needed

1)

A uniform magnetic field passes through a horizontal circular wire loop at an angle 19.5 from the normal to the plane of the loop. The magnitude of the magnetic field is 2.15 T, and the radius of the wire loop is 0.230 m. Find the magnetic flux D through the loop. D = WbA uniform magnetic field passes through a horizontal circular wire loop at an angle 17.3' from the vertical. The magnitude of the magnetic field B changes in time according to the equation B (t) = (3.75 T) + 2.75 - )+ (-5.85. T If the radius of the wire loop is 0.270 m, find the magnitude & of the induced emf in the loop when t = 5.63 s. & = VDuring a transcranial magnetic stimulation (TMS) treatment, a magnetic field, typically of magnitude 5.00 T, is produced in the brain using external coils. During the treatment, the current in the coils (and hence the magnetic field in the brain) rises from zero to its peak in about 70.0 us . Assume that the magnetic field is uniform over a circular area of diameter 2.00 x 10-2 m inside the brain. What is the magnitude of the average induced emf around this region of the brain during the treatment? average induced emf: V. A 137 turn circular coil of radius 2.59 cm is immersed in a uniform magnetic eld that is perpendicular to the plane of the coil. Over an interval of l0.121 s. the magnetic field strength increases from 56.3 mT to 94.9 mT. Find the magnitude of the average emf 8mg induced in the coil during this time interval, in millivolts. m Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patient's chest. A constant uniform external magnetic eld is produced by a nearby solenoid. As the patient inhales, his chest expands, stretching the chest band. The resulting increase in the area of the loop causes an emf to be induced in the loop. By measuring the induced emf. a device user can estimate the patient's breathing rate. 2 Mindy needs the apparatus to be able to detect a change in area as small as 3.50 cm occuring over a time period of 1.50 s. If the minimum emf that can be reliably detected is 3.00 x 104 V. what is the magnitude of the minimum external magnetic eld that would be needed from the solenoid? 5- '1 '.l|||LllI LCG' I|||| Due to practical constraints, the largest magnetic eld that the solenoid can actually produce is 3.50 X 103 T. Mindy decides to compensate by using multiple loops of the conductive material in series. How many conductive loops should be in the chest band? In each figure, a magnet is located beneath a conducting loop and along its central axis. A velocity vector drawn near the magnet indicates that the magnet is moving, and a velocity vector drawn near the loop indicates that the loop is oving. @ Macmillan Learning For each case, indicate the direction of the induced current in the wire loop. The clockwise and counterclockwise directions are defined with respect to an observer viewing the loop from below. Answer Bank clockwise counterclockwise N S S S NV N N S SThe component of the external magnetic field along the central axis of a 50 turn circular coil of radius 28.0 cm decreases from 2.90 T to 0.400 T in 2.60 s. If the resistance of the coil is R = 7.50 0, what is the magnitude of the induced current in the coil? magnitude: A What is the direction of the current if the axial component of the field points away from the viewer? O clockwise counter-clockwise