If electric and magnetic field strengths vary sinusoidally in time, being zero at t =0, then E =E0 sin 2πft and B= B0 sin 2πft. Let f =1.00 GHz here. (a) When are the field strengths first zero? (b) When do they reach their most negative value? (c) How much time is needed for them to complete one cycle?

Q: Assume (unrealistically) that a TV station acts as a point source broadcasting isotropically at 2.5…

A: Given Power                                    = 2.5 MW The distance of nearby star  = 44 ly

Q: Lunar astronauts placed a reflector on the Moon’s surface, from which a laser beam is periodically…

A:

Q: How long does it take for the EM wave to reach me if I am standing 15m from the source?

A: Given data:  Distance (d) = 15 m Required: The time taken by EM wave to travel 15 m

Q: The electric field from a radio station some distance from the transmitter is given by (10-4 N/C)…

A: Given, Electric field from a radio station, 10-4 NC cos 106t d = 86 cm

Q: Bmvvbj

A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…

Q: An air-filled capacitor is composed of parallel large circular plates with a common radius of 8.13…

A:

Q: An air-filled capacitor is composed of large parallel circular plates with a common radius of 6.73…

A:

Q: A light source radiates isotropically with a power of 1500 W. The maximum intensity of the electric…

A: The intensity,I is defined as I=P4πR2               (1) where, P is the power in Watt and R is the…

Q: The potential difference between parallel plates shown is instantaneously increasing at a rate of 5…

A: Given, Separation between the plate d = 0.6 cm = 0.6 x 10-2 m Area A = 0.36 m2   We know the…

Q: Doubling the frequency of a wave in the range of 25 Hz to 3 kHz represents what change in the…

A:

Q: Calculate the peak electric and magnetic fields 32.1 km from a 1.0MW radio station, assuming that it…

A:

Q: 0.210-A current is charging a capacitor that has circular plates 14.2 cm in radius. The plate…

A: Given data as per question  I  =  0.210A R  =  14.2cm D  =  4mm

Q: What is the wavelength (in meters) of an em wave with a freuqency of 86.3 GHz (1 GHz = 109 Hz)?

A: Given : f = 86.3 GHz = 86.3 x 109 Hz

Q: In a medium with (u, 1,6,= 8) the electric filed intensity is given by E =10 sin(1000t - 10x) ay…

A: See step 2

Q: The beating heart of a person in a relaxed state creates a maximum 3.90 mV potential across 0.33 m…

A:

Q: In the figure, a capacitor with circular plates of radius R = 16.0 cm is connected to a source of…

A: Step 1: Step 2: Step 3: Step 4:

Q: If the electric field intensity in a source-free, dielectric medium is given as E = Eo[sin(ax – wt)+…

A: Faraday’s law of electromagnetic induction states that the line integral of the electric field…

Q: eing charged. As a result the electric field between the x 1014 v/m.s)t, where t is time in seconds.…

A:

Q: Positively charged ions enter perpendicularly crossed fields at an electric field strength of E₁ =…

A: We are given magnetic and electric field in the region. We are given that some ions pass straight…

Q: A radio station operating at 600KHZ uses a monopole antenna. Calculate the station antenna length L…

A:

Q: The instantaneous B(x. y, z; t) in vacuum is given by B = a,B, cos(2y) sin(w – nz) + a,B, cos(2x)…

A: Electric Current density can be derived from given magnetic field using Maxwell's equation. Note-…

Q: A 0.210-A current is charging a capacitor that has circular plates 15.5 cm in radius. The plate…

A:

Q: An important news announcement is transmitted by radio waves to people sitting next to their radios…

A: Given data The transmitted distance of the radio wave from the station is xfar = 100 km. The…

Q: Consider the mass spectrometer shown schematically in the figure below. The magnitude of the…

A: Given data:      Electric field, E = 2.10×103V      Magnetic field, B = 0.0300 T      Mass, m =…

Q: 0.220-A current is charging a capacitor that has circular plates 13.5 cm in radius. The plate…

A: Let I be the current, R be the radius of the circular plate capacitor, and d be the plate’s…

Q: Part (a) When are the field strengths next equal to zero? Give your answer in seconds. Part (b) When…

A:

Q: A 0.230-A current is charging a capacitor that has circular plates 14.4 cm in radius. The plate…

A: (a) The capacitance of the given capacitor is C=QV The rate of change of electric field between the…

Q: A 0.112-A current is charging a capacitor that has square plates 5.20 cm on each side. The plate…

A: Assuming ideal capacitor with a homogeneous electric field E between the plates and no electric…

Q: In the figure, a capacitor with circular plates of radius R = 25.0 cm is connected to a source of…

A: As per guidelines, first three sub-parts have been answered. (a) Maximum value of current in the…

Q: Calculate the displacement current Id between the square plates, 7.2 cmon a side, of a capacitor if…

A: Data distance,d=7.2cm Electric field, E=2.8×10^6 V/m*s To find Id

Q: A point charge for which Q combined fields E = 100ax the charge velocity at t = vector showing the…

A:

Q: At what distance from a 125 W electromagnetic-wave point source does Emax = 15.1 V/m?

A: We know ,the maximum electric field is given by

Q: Under what conditions might wires in a circuit where the current flows in only one direction emit…

A:

Q: A half-wave dipole transmitter in the centre of a city is required to give signals to cars…

A:

Q: Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of…

A:

Q: In a magnetic field with a flux density equal to 2 Tesla, the calcium line resulting from p,' D2' at…

A: The Frequency separation in Zeman Effect is known to us as  ν =Be4πm Where B = applied field  = 2 Tν…

Q: answer question 7

A: