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If the tape pulled from the dispenser has 0.14 micro C of charge per centimeter, what length of the tape must be pulled to transfer 1.8 x 10^13.
Light is send through the two-sheet polarizing system with unknown orientation of the polarizing axes.
Find the force that the point charge exerts on the conductor by considering the force on the induced surface charge density.
Using method of images, find the force of attraction between an external point charge +Q and a conducting sphere of potential V_0.
Charge is uniformly distributed around a ring of radius R= 2.40 cm and the resulting electric field magnitude E is measured along the ring's central axis.
Two drunks start out together at the origin, each having equal probability of making a step to the left or right along the x-axis.
If there is a force of 5.0 x 10-12 N acting to the left on an electron, the electric field intensity at the location of this electron will be:
Object A is metallic and electrically neutral. It is charged by induction so that it acquires a charge of -3.0 x 10^-6 C.
The potential difference between the two locations is Vb-Va= 45.0 V. What is the magnitude and sign of the charge?
Calculate the surface charge density on the inside surface of the conducting sphere.
Find the electron potential inside and outside of a spherical conductor of radius R = 15 cm carrying a charge Q = 10^-9 C.
Calculate the magnitude of the electric field at r = 0.57 m. Calculate the magnitude of the electric field at r = 1.73 m.
If the potential on the outer surface of the membrane is +70.0 mV greater than that on the inside surface, how much charge resides on the outer surface?
What is the charge density of a uniform infinitesimally thin spherical shell shell of Radius R and total charge Q which is centered at the origin.
Under what circumstances will the drift speed of electrons be the same in both wires? Choose the answer that best fits.
Where must an electron be placed relative to the point charge so that the electric force acting on the electron is exactly opposite to its own weight?
When I placed packing peanuts in a pie plate they also flew off. Why? Can this be explained by the same physical mechanism as question .
Calculate the magnitude of the electric field at any point between the cylinders a distance r from the axis.
Find the electric field at point P on the x-axis at a distance x from the origin. What if the system was less symmetric?
Is it impossible for two people to simultaneously operate 1300W hair dryers on the same 120V circuit without tripping a 15A circuit breaker? Explain?
A test charge of +2 x 10-7C is located 5cm to the right of a charge of +1 x 10-6C and 10cm to the left of a charge of -1 x 10-6C.
A capacitor has a capacitance of 6.40uF. How much charge must be removed to lower the potential difference of its plate by 50.0V?
Now the charges Q1= 1.22·10-6 C and Q2= -3.03·10-6 C are fixed at their positions, distance 0.235 m apart, and the charge Q3= 3.33·10-6 C
An electron travels along the x-axis in a horizontal (x-y) plane, in the positive direction. It experiences a force in the vertical (z) direction.
A straight wire is carrying current along the x-axis in the +x direction. A second straight wire is carrying an equal current along the y-axis.