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Category: electro magnetics

Category: electro magnetics

Problem 10.3 A 3-cm–wavelength radar is located at the origin of an x–ycoordinate system. A car located at x = 100 m and y = 200 m is heading east (xdirection) at a speed of 120 km/hr. What is the Doppler frequency measured by the radar?

Problem 10.3 A 3-cm–wavelength radar is located at the origin of an x–ycoordinate system. A car located at x = 100 m and y = 200 m is heading east (xdirection) at a speed of 120 km/hr. What is the Doppler frequency measured by the radar?

Problem 10.2 A radar system is characterized by the following parameters: Pt =1 kW, τ = 0.1 µs, G = 30 dB, λ = 3 cm, and Tsys = 1,500 K. The radar cross section of acar is typically 5 m2. How far away can the car be and remain detectable by the radarwith a minimum signal-to-noise ratio of 13 dB?

Problem 10.2 A radar system is characterized by the following parameters: Pt =1 kW, τ = 0.1 µs, G = 30 dB, λ = 3 cm, and Tsys = 1,500 K. The radar cross section of acar is typically 5 m2. How far away can the car be and remain detectable by the radarwith a minimum signal-to-noise ratio of 13 dB?

Problem 10.1 A geostationary satellite is at a distance of 40,000 km from aground receiving station. The satellite transmitting antenna is a circular aperture with a1-m diameter, and the ground station uses a parabolic dish antenna with an effectivediameter of 20 cm. If the satellite transmits 1 kW of power at 12 GHz and the groundreceiver is characterized by a system noise temperature of 1,000 K, what would be thesignal-to-noise ratio of a received TV signal with a bandwidth of 6 MHz? The antennasand the atmosphere may be assumed lossless.

Problem 10.1 A geostationary satellite is at a distance of 40,000 km from aground receiving station. The satellite transmitting antenna is a circular aperture with a1-m diameter, and the ground station uses a parabolic dish antenna with an effectivediameter of 20 cm. If the satellite transmits 1 kW of power at 12 GHz and the groundreceiver is characterized by a system noise temperature of 1,000 K, what would be thesignal-to-noise ratio of a received TV signal with a bandwidth of 6 MHz? The antennasand the atmosphere may be assumed lossless.

2. The planes y=0 and y = -d are occupied by conductors maintained at static potential V1 and V2 volts , respectively . solve for in the region.

2. The planes y=0 and y = -d are occupied by conductors maintained at static potential V1 and V2 volts , respectively . solve for in the region.

1. A uniform filamentry current I flows in the +x-direction along the line y=1 ,z = 4 , Find at (3,4,5) in rectangular components. Assume free space.

1. A uniform filamentry current I flows in the +x-direction along the line y=1 ,z = 4 , Find at (3,4,5) in rectangular components. Assume free space.

4. The square conducting loop below with area 1 rotates at 60 revolutions per minute in a uniform magnetic flux density given by. Determine the current induced in the loop if its internal resistance is 1.

4. The square conducting loop below with area 1 rotates at 60 revolutions per minute in a uniform magnetic flux density given by. Determine the current induced in the loop if its internal resistance is 1.

3. The plates of a parallel-plate capacitor have areas of 1 each and are separed by 1 m. the capacitor is filled with air and the voltage across it is given by. Find the displacement current.

3. The plates of a parallel-plate capacitor have areas of 1 each and are separed by 1 m. the capacitor is filled with air and the voltage across it is given by. Find the displacement current.

2. A 10 m long metal rod rotates about the z axis at 60 revolution per minute in counterclockwise direction, with end A fixed at the origin as shown below. Determine the induced the induced emfVAB if.

2. A 10 m long metal rod rotates about the z axis at 60 revolution per minute in counterclockwise direction, with end A fixed at the origin as shown below. Determine the induced the induced emfVAB if.

1. A coil consists of 100 turns of wire wrapped around a circular frame of radius 1 m. The coil is centered at the origin on the x-y plane. Find the induced emf across the open-circuited ends of the coil if the magmetic field is (T).

1. A coil consists of 100 turns of wire wrapped around a circular frame of radius 1 m. The coil is centered at the origin on the x-y plane. Find the induced emf across the open-circuited ends of the coil if the magmetic field is (T).

Problem 8.5 A 2 km long optical fiber uses a fiber core with nf = 1.6 and acladding with nc = 1.57. Compute the maximum data rate and confirm your result using

Problem 8.5 A 2 km long optical fiber uses a fiber core with nf = 1.6 and acladding with nc = 1.57. Compute the maximum data rate and confirm your result using

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