QUESTION 2 The magnetic field phasor of a plane wave traveling in a medium with intrinsic impedan equal to 100 2 is given by: H = (10+220)e-14x (m/m) (a) Determine the associated electric field phasor. (b) The polarization of the wave.
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- Current Attempt in Progress An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is 5 = 4.70 x 10° W/m². What is the rms value of (a) the electric field and (b) the magnetic field in the electromagnetic wave emitted by the laser? (a) Number i (b) Number i Units UnitsA perfectly reflecting surface of area 44.0 cm2 experiences a momentum transfer per second of magnitude 1.60 x 10-10 N when a plane electromagnetic wave strikes it. Determine the intensity of the wave. W/m2An electromagnetic wave propagates according to the equation (in picture) in a polarized state. Determine the area of the wave spectrum (IR, UV, VL)
- Q1 (a) The magnetic field intensity H of an electromagnetic wave propagating in free space in the z-direction is described in phasor form by H = îHe¯ where B is its phase constant. Determine the corresponding electric field from Ampere's law. [8] A long straight wire in air carries a current of 5 A. What is the magnetic field intensity H at a radial distance of 5 m from the wire? (b) [4] A battery of open circuit voltage 2 V and internal resistance 50 SN is connected via a rapid switch to a transmission line of characteristic impedance 50 N terminated in a load of 100 . Calculate the voltage and current on the line just after the switch is closed, explaining your answer carefully. (c) [6]A perfectly reflecting surface of area 46.7 cm2 experiences a momentum transfer per second of magnitude 1.85 x 10-10 N when a plane electromagnetic wave strikes it. Determine the intensity of the wave. W/m2Hence show that the wave equation for the magnetic field is V²H+k²H=0 where k = ₁√√μ₁&
- An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is 5 = 1.95 x 10⁹ W/m². What is the rms value of (a) the electric field and (b) the magnetic field in the electromagnetic wave emitted by the laser? (a) Number (b) Number i 2.23E6 i 4.06 Units nm + Units T +1- The magnetic field in a given dielectric medium is given by H = ŷ6cos (2z)sin (2 × 10't – 0.1x) (A/m), where x and z are in meters. Determine: a) whether this is a plane wave or not, b) the direction of propagation, c) Electric field Ē †,t), and d) the displacement current density J(f, t).1 What is the electric field amplitude in an electromagnetic wave that has a magnetic field amplitude of 5.00 x 10-4rmT? Your units should be in V/m, but do not include your units in the answer box.
- What is the displacement current in a parallel plate capacitor with circular plates of area 2500 cm², separated by 100 μm, when the electric field in the capacitor is changing at a rate of 3 x 10¹0 V/m s? 24 mA 35 mA 48 mA 66 mA 78 mA 90 mAA plane electromagnetic wave is traveling in a vacuum. The magnetic field is directed along the z-axis and given by: B, = 3.0µT sin ((1.0 × 107 )x - (3.0 × 1015 )t ) a) Determine the wavelength , of the wave. b) What is the frequency, f, of the wave in Hertz? c) Determine the maximum strength of the B-field. d) Determine the maximum strength of the E-field and it direction. e) Can you find a time and place when the B-field is zero? f) What is the strength of the E-field when the B-filed is zero?