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An external magnetic field changes as a function of time such that: (1) it is momentarily zero at time "t=0" , and (2) it produces an electric field "E=x\\hat{y}-y\\hat{z}" that is constant in time. Determine the magnitude and direction of the magnetic field as a function of time
What is the force between two 1.0 X 10-5 C charges separated by 2.0 m?
Two charged spheres placed 43 cm apart exert a force of 1.40 × 10-14 N on each other. If one of the spheres has a charge of 1.68 × 10-17 C, what is the charge of the other sphere?
Within an existing electric field, Point P has a greater number of electric field lines moving near it than Point T. Which of the following is true regarding the electric field?
Two charged spheres exert a force of 5.54 × 10-4 N on each other. If one of the spheres has a charge of 3.72 × 10-9 C and the other sphere has a charge of 4.32 × 10-6 C, how far apart are the charged spheres?
Two charged spheres exert a force of 5.54 × 10-4 N on each other. If one of the spheres has a charge of 3.72 × 10-9 C and the other sphere has a charge of 4.32 × 10-6 C, how far apart are the charged spheres?
If the field strength in the solenoid for the bell in part (a) is 2.00x10 -5 T and there are 6
loops (exact), then find the current sent out by the battery. The length is 12.0cm. [4 marks]
Consider that earth is a positively charge object having charge equals to its mass (6×1024C)
and the moon is a negativity charge particle of charge (7×1022C)
a) Find the coulomb force between them if the distance is 384,403 km
b) if sun, moon and earth are collinear and the distance between sun and the center of moon and
earth is 149,597,887 km find Electric Field at sun?
A toroid of inner radius 15cm and an outer radius 18cm carries an electric current of 5A. How many times must the wire be wound about it such that the toroid will yield a magnetic field of 8x10-3 T at its center?
A solenoid is being constructed to yield a uniform 1T magnetic field from its center. A long wire is used to make 300 turns around this conductor. If the solenoid has to be 60cm long and 6cm in diameter, determine the electric current needed to produce the given magnetic field.
