Example The normalized radiation intensity of an antenna is defined by U(0) = sin(0), Find the b. FNBW a. HPBW 270 300 1 240 330 210 180 0.2 0,4 E Th 0.6 0.8 150 a.
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A: Note : Out of given multiple questions, we solve only first question unless specified. You can…
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- The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 1.30 mm in diameter, what is its intensity? 1.88e2 W/m2 (b) Find the peak electric field strength. 1.255e-6 What is the relationship between intensity and electric field strength? V/m (c) Find the peak magnetic field strength. 3.765e-6 What is the relationship between electric field strength and magnetic field strength in an electromagnetic wave? TA parallel-plate, air-filled capacitor is being charged. The circular plates have radius 4.00 cm, and at aparticularinstant the conduction current in the wires is 0.520 A. What is the induced magneticfield between the plates at a distance of 2.00 cm from the axis?Mammography is an x-ray imaging procedure for breast cancer diagnosis and screening. Assume that 20ke V x-ray is used in mammography. Also assume that the breast of a patient is 6 cm in thickness (soft tissue), and the propagation speed of x-ray photons in soft tissue is about the same as in vacuum. How long will it take for x- ray photons to travel through the breast?
- 5) A circular-plate capacitor with radius 10.0 cm and plate separation 4.00 mm is being charged with a 0.100 A current. Calculate the a) the time rate of change of electric flux between the plates and b) the displacement current. c) the magnetic field between the plates, 5.00 cm from the center. 6) An electromagnetic wave in vacuum has an electric field amplitude of 100 V/m and frequency of 60 kHz. Calculate the a) amplitude, b) frequency of the corresponding magnetic field.4. A spotlight shines onto a square target of area 0.35 m?. If the average rms strength of the magnetic field in the EM waves of the spotlight is 1.2 x 107 T, calculate the energy transferred to the target if it remains in the light for 12 minutes. (Give answer in joules) F3 FB #3 2$ 4 & * 2 3 5 8 9 W E T U KA 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?