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Problem 2: An alternating current I = locos (wt) flows through a square loop of side...
1. Antenna problem A wire of length L has its center at the origin, and lies along the z axis. The current carried by the wire is of the form I(,)-locos(wt) cos(1). Consider positions in the radiation zone. (a) Compute A(r, t) b) Compute E(r,t) and B(r, t) (c) Compute the angular distribution of radiated power 1. Antenna problem A wire of length L has its center at the origin, and lies along the z axis. The current carried by...
10. A square loop (side a) is mounted on a vertical shaft and rotated at angular velocity w. A uniform magnetic field B points to the right. Find the emf for this alternating current generator. 2
The rotating loop in an AC generator is a square 14.0 cm on a side. It is rotated at 40.0 Hz in a uniform field of 0.800 1. Calculate the following quantities as functions of time t, where is in seconds (a) the flux through the loop (b) the emf induced in the loop (c) the current induced in the loop for a boop resistance of 1.500 Id) the power delivered to the loop w (e) the torque that must...
The rotating loop in an AC generator is a square 13.0 cm on a side. It is rotated at 75.0 Hz in a uniform field of 0.800 T. Calculate the following quantities as functions of time t, where t is in seconds. (a) the flux through the loop mT·m2 (b) the emf induced in the loop V (c) the current induced in the loop for a loop resistance of 2.00 Ω A (d) the power delivered to the loop W...
The rotating loop in an AC generator is a square 15.0 cm on a side. It is rotated at 70.0 Hz in a uniform field of 0.800 T. Calculate the following quantities as functions of time t, where t is in seconds. (a) the flux through the loop mT-m^2 (b) the emf induced in the loop V (c) the current induced in the loop for a loop resistance of 1.50 ohm A (c) the power delivered to the loop W...
4. Magnetic dipole radiation- two loops Consider a circular current loop in the xy plane of radius b as in Section 11.1.3(See image above). Suppose there is another parallel identical loop placed a distance d above the first loop. The directions of the currents in the two loops are both counterclockwise. The long wavelength approximation is applicable. (a) Compute the total vector potential A at positions in the radiation zone. (b) Compute the total magnetic field in the radiation zone....
Need some help with a physics problem - Find the magnetic flux through a square loop of wire of side length 10 cm which is a distance 5 cm from a current carrying wire where I(t) = 15sin(100t) and t is in seconds. Determine the emf induced in the square loop of wire if the loop is at rest.
Problem 2: A small square patch, having a side dimension of W 5 cm, is heated from the backside. The heated patch is partially shielded <* from the environment by a radiation shield. This shield comprises of surfaces 2 and 3, as illustrated. The ambient is at T -300 K. The patch is radiatively black, while the shield material has an emissivity of E 0.2. Determine the power requirement to maintain the square patch at T, 800 K. Assume the...
(11%) Problem 7: A square loop of side length a =2.2 cm is placed a distance b= 1.1 cm from a long wire carrying a current that varies with time at a constant rate, i.e. I(t) = Qt, where Q = 3.6 A/s is a constant. a b A 25% Part (a) Find an expression for the magnetic field due to the wire as a function of time t at a distance r from the wire, in terms of a,...
A square loop of wire of side 2.6 cm and electrical resistance 79 ohm is near a long straight wire that carries a current of 7.0 A in the direction indicated. The long wire and loop both lie in the plane of the screen. The left side of the loop is 9.0 cm from the wire. Part 1 out of 3 (a) If the loop is at rest, what is the induced emf in the loop? What are the magnitude...