If the distance between the plates of a capacitor of radius R and consisting of two opposing circular plates is d=5 mm and the potential difference between the plates of this capacitor is dv/dt = 50 Volts/s, then from the center of the plates. What is the magnitude of the induced magnetic field at points at distance r = R/8?

QB2d. Calculate the EMF induced in the railway carriage wheel of radius R=840 mm by the magnetic field of the Earth. Consider that the magnetic field of the Earth makes an angle of 71.5 deg with the horizontal surface of the railway track. Take the speed of the carriage to be v = = 158 km h¹ and the value of the magnetic field of the Earth B = 10-5 T. Provide your answer in microvolts (10-6 V=1 μV): for example, if you calculated the value to be 0.000075 V, then enter 75 as your answer. Enter your answer in the box below.

Consider the following:A uniform magnetic field B= -0.033TK is present in a region of space, as shown in the figure. There is also a uniform electric field in this region of space. A protn with a constant velocity v = 74 m/s T passes through the region without deflection. What is the magnitude of the electric field in the region?

Consider the Hall voltage induced on a patient’s heart while being scanned by an MRI unit. l = 8.5 cmv = 7.5 cm/s Approximate the conducting path on the heart wall by a wire 8.5 cm long that moves at 7.5 cm/s perpendicular to a 1.50 T magnetic field. Find the Hall voltage across the patient's heart in mV.