Compute the velocity of light in diamond, which has a dielectric constant of 5.5 (at frequencies within the visible range) and a magnetic susceptibility of 2.17 × 10-5 (
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Compute the velocity of light in diamond, which has a dielectric constant of 5.5 (at
frequencies within the visible range) and a magnetic susceptibility of 2.17 × 10-5
(
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- Consider a stationary square loop antenna of area 400cm?, which has an internal resistance of R=5 N. If the magnetic field in the medium is perpendicular to the loop plane and has the form, B = -â‚10e-t/(5x10²) µTesla, determine; a) the total magnetic flux coupled to the loop b) the induced emf at the terminals of ROn a clear day at a certain location, a 100-V/m vertical electric field exists near the Earth's surface. At the same place, the Earth's magnetic field has a magnitude of 0.500 × 10-4 T. Compute the energy densities of the electric fieldA plane, regular, and frequency wave if 9.4GHzthe amplitude of the magnetic field strength is 7m A/m The material is supposed to be very lossless: 1) The speed of propagation. 2) wavelength 3) phase constant 4) Self-impedance 5) The widening of the electric field.
- Suppose that a parallel-plate capacitor has circular plates with radius R = 30 mm and a plate separation of 4.1 mm. Suppose also that a sinusoidal potential difference with a maximum value of 120 V and a frequency of 57 Hz is applied across the plates; that is, V = (120 V) sin[2+(57 Hz)t]. Find Bmax(R), the maximum value of the induced magnetic field that occurs at r = R. Number i Units TGiven the magnetic flied intensity in vacuum H = 2.23 ax + 3.25 ay + 2.00 az milliamperes per meter. Determine the amount of flux, in webers, passing through the rectangular plane of dimensions 3.77 cm by 3.98 cm lying on y = 1.01 meters in the +y-direction. Use u0 = 4pi x 10e-7 H/m.A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.70 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 110 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in uV and the direction as seen from above.) magnitude HV direction ---Select-- v as seen from above (b) Immediately after this, in the next 70.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in uV and the direction as seen from above.) magnitude direction ---Select-- v as seen from above
- In a nonmagnetic material electric field intensity is given by E =16 cos(4*108t- 2x) ay V/m The relative permittivity of the medium will be?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.A spatially uniform magnetic field is restricted in a circular region of space with radius of 3.75 cm and has a constant direction; see figure below. If the magnetic field varies with time t as B(t) = (24.5 mT/s²) ², the magnitude of the induced electric field at a distance of 5.00 cm from the center of the magnetic field region at t= 1.50 s is most nearly A. 25.8 mV/m magnetic field B. 8.46 mV/m region C. 1.03 mV/m D. 23.0 mV/m E. 17.3 mV/m 5.00 сm! xx
- An industrial laser is used to bum a bole through a piece of metal. The average intensity of the light is Savg same laser, what is the rms value of the magnetic field? 1.27 x 10 W/m². What is the rms value of the electric field? For this ra a eloctronmagntic waues nhntes nowwrr uniformlyin all directions at a sineleSuppose that a parallel-plate capacitor has circular plates with radius R = 35 mm and a plate separation of 6.5 mm. Suppose also that a sinusoidal potential difference with a maximum value of 160 V and a frequency of 75 Hz is applied across the plates; that is, V= (160 V) sin [2π(75 Hz)t]. Find Bmax(R), the maximum value of the induced magnetic field that occurs at r = R. Number i Unitsdy 2ху The integrating factor of * dx 4x is 1+x2 1+x2 O4x2 O 1+ x² -4x2 2x