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The net electric field due to the particles is zero at x = d/4. With V = 0 at infinity, locate (in terms of d) any point on the x axis.
Find the magnitude of the net electric field these sheets produce at a point 4.00 cm to the right of sheet A .
A charge +2q is placed at the origin and a second charge –q is placed at x= 3.0 cm. where can a third charge +Q be placed so that it experiences a zero force?
What is the magnitude and direction of the electric field along the axis of the ring?What is electric field potential along the axis of the ring?
You want to create a uniform (constant and parallel) magnetic field in a small volume of space. The field should be 500 Gauss.
What is the potential difference (as would be measured by a voltmeter) between the two spheres?
This outer square has sides of 4m. What is the electric field at the center of the set up?
If the current through the rod is 3.27 A, find the magnitude of the magnetic force on the rod.
Protons are projected with an initial speed v = 9550m/sec into region where the electric potential is given by V = 720z volts.
A plastic ring of Radius R= 50.0 cm has two small charged beads on it. Bead 1 of charge +2.00 micro Coulombs is fixed in place on the left side of the ring.
A charge of +10.7 micro-Coulombs is placed at the origin of a coordinate system. Another charge of -12.6 micro-Coulombs is placed at x = +0.19 m.
A radio-frequency heat-sealer operating at 27 MHz.A microwave oven operating at a frequency of 2.45 GHz.
Find the magnetic field at the disk center, assuming the current density is: Constant.
Can we use this electric field to build a levitation device? How much charge would you have to have on you to levitate in this electric field?
The speed of electromagnetic waves through vacuum or air is 3X10^8m/sec. Find the frequency of the green light with a wavelength of 5.4X10^-7m
The theatre is putting on a new musical and they are changing from traditional rifle microphones to radio microphone system.
What is the magnitude of the maximum electric force that the charge experiences? (b) If the charge is moving at a speed of 3.7 x 10^4 m/s.
It takes light 20 min to travel from Mars to Earth. How might this affect a conversation between an astronaut on Mars and people on Earth?
What was the historical scope of telecommunications? How has it changed? In what ways might it change in the future? How does IS fit into these trends?
What fraction of the oscillation period T must delta t be to produce the proper value of phi_20?
A police car is moving to the right at X m/s, while a speeder is coming up from behind at a speed X m/s, both speeds being with respect to the ground.
Light exerts pressure on surfaces on which if falls (radiation pressure). Will this pressure be greater on a shiny surface or a dark surface?
Discuss how new detectors that allow us to see more of the electromagnetic spectrum (outside of visible light) have opened up new astronomical knowledge.
Find the characteristic impedance for a coaxial cable with an inductance of 64 nH/ft and a capacitance of 43 pF/ft.
Compare alternating and direct current, highlighting the advantages and disadvantages of each.