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Electricity and Magnetism
A 3.6 μC charge is moved from a position where its electric potential energy is 7.2 mJ to a position where its potential energy is 1.8 mJ. What is the potential at the first position?
Electricity and Magnetism
Three point charges, q1 = 2.0 μC, q2 = 2.0 μC, and q3 = −1.0 μC, are located at the vertices of an equilateral triangle of side length 30 cm. What is the potential energy of this arrangement?
Electricity and Magnetism
Three point charges, q1, q2, and q3, are located at the vertices of an equilateral triangle. If q1 = q2, what value must q3 have so that the total potential energy of the arrangement is zero?
Electricity and Magnetism
Two charges are located on the x-axis. A 22 µC charge is located at the origin and a 47 µC charge is located at x = 4.0 m. What is the electric field at x = 3.00 m?
Electricity and Magnetism
Two positive charges, each of 4.8 µC, and negative charge -6.36 µC are fixed at the vertices of an equilateral triangle of side 13 cm. Find the electrical force on negative charge.
Electricity and Magnetism
The ratio of the magnetic field inside a solenoid at an axial point well inside and at an axial end point is
Ans 2
Electricity and Magnetism
What is the decay constant?
Electricity and Magnetism
what causes permanent magnetism?
Electricity and Magnetism
A circular coil consists 70 closely wound turns and has a radius of 10cm. An externally produced magnetic field of magnitude 2×10^(-3)T is applied perpendicular to the coil.The net flux through the coil is found to vanish when the current in the coil is 2.2A. The inductance of the coil is
Ans 3mH
Ans 3mH
Electricity and Magnetism
Two point charges of unknown magnitude and sign are placed
a distance d apart. (a) If it is possible to have E= 0 at any
point not between the charges but on the line joining them,
what are the necessary conditions and where is the point located(b) Is it possible, for any arrangement of two points charges, to find two points (neither at infinity) at which E=0 if so under what conditions?
a distance d apart. (a) If it is possible to have E= 0 at any
point not between the charges but on the line joining them,
what are the necessary conditions and where is the point located(b) Is it possible, for any arrangement of two points charges, to find two points (neither at infinity) at which E=0 if so under what conditions?
