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How does the speed of the particles as they enter the field compare to their speed as they exit the field.
How far must the point charges q1 = +7.22 µC and q2 = -22.9 µC be separated in cm for the electric potential energy of the system to be -159 J?
A solenoid that is 75 cm long produces a magnetic field of 2.1 T within its core when it carries a current of 6.8 A. How many turns of wire.
Suppose that a current-carrying ohmic metal wire has a cross-sectional area that gradually becomes smaller from one end of the wire to the other.
1) How would you arrange two flat circular coils so that their mutual inductance was a) greatest b) least (without separating them by a great distance)?
The cube is 40 cm on each edge. Four straight segments of wire - ab, bc, cd, and da - form a closed loop that carries a current I = 5 A.
Suppose a plane electromagnetic wave has a wavelength of 50 m and the electric field vibrates with an amplitude of 22 V/m.
You may not use any results for the magnetic field due to any current configuration. Be sure to explain each step in your reasoning carefully.
The drawing shows the potential at five points on a set of axes. Each of the four points is 7.0 x 10^-3 mt from the point of origin.
The plates are insulating and have uniform surface charge densities +σ and -σ. The charge on the sphere is q = 8.60 * 10-6 C.
The values of the potentials are in kV as indicated for the +5, 0, and -5 kV contours. The positions of the charges are indicated by the dots.
Two protons are moving directly towards one another. When they are very far apart, their initial speeds are 3.00 x 10^6 m/s.
Draw a few equipotential lines. Remember, these are the curves that circle the charge distribution, always perpendicular to the electric field lines.
Find the total energy by multiplying your answer from part (b) by the total volume between the plates.
A uniformly charged disk of radius 35.0 cm carries charge with a density of 7.90 x 10^-3 C/m^2. Calculate the electric field on the axis of the disk.
Calculate the magnitude of the electric field at the ball's location due to the charged wall, and state its direction relative to the coordinate axes shown.
When a shower is turned on in a closed bathroom, the splashing of the water on the bare tub can fill the room's air with negatively charged ions.
Two Large metal plates of area 1.0 m^2 face each other. They are 5.0 cm apart and have equal but opposite charges on their inner surfaces.
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?