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A transmitter is located 1 OOm from a 28m high brick wall (εr = 4 ), while a receiver is located on the other side, 120m away from the wall. The wall is 20 cm thick and can be regarded as lossless. Let transmit antenna is 20m high and receive antenna is 14m high. The centre frequency is 900 MHz. Considering TE waves, determine the field strength at the receiver caused by transmission through the wall.
An emf is induced by rotating a 860o turn, 21.0 cm diameter coil in the Earth's 4.50x10-5 T magnetic field. What average emf is induced, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to t..
Find out the magnitude of the acceleration of the electron. How large is the pulling force it the wagon is moving with a constant speed.
A mass m1 = 3.2 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.3 kg which hangs freely from the string, How much work is done by gravity on the two block system
The velocity of light in glass is 2*10^8 m/s and in air is 3*10^8 m/s. How much would be an ink dot to be raised, when covered by a glass plate of 6cm thick
Suppose you have a thin, uniform rod with a total mass of 3.00 kg and a total length of 2.00 m. By what percent- age does the moment of inertia decrease if you rotate it about a point located 20% (0.40 m) from one end, instead of at that end?
a raindrop of mass 3.0610e5 kg falls vertically at constant speed under the influence of gravity and air resistance.
How to find out speed of the block
A long wire carrying 140 A is perpendicular to the magnetic field lines of a uniform magnetic field of magnitude 6.5 mT. At what distance from the wire is the net magnetic field equal to zero
Calculate the peak output voltage of a simple generator whose square armature windings are 5.50 cm on a side
Once inside the magnetic field, all the necessary forces on the ions are assumed balanced. Based on this information calculate the radius of the path of each of the isotope in the spectrometer.
A state trooper chases a speeder; along a straight road; both vehicles at 160km/h. The serin on the troopers vehicle produces sound at a frequency. Doppler shift in the frequency heard by the speeder
question the current-density magnitude in a certain circular wire is j 2.60 times 1010 am4r2 where r is the radial
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