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Electricity and Magnetism
Consider the figure given below. Charges 1 2 3 q , q and q are placed at A, B and C,
respectively, and 2 C. q1 = q2 = −q3 = µ Determine the magnitude and the direction
of the electric field at point P.
respectively, and 2 C. q1 = q2 = −q3 = µ Determine the magnitude and the direction
of the electric field at point P.
Electricity and Magnetism
The greater the diameter of the wire used in household wiring, the greater the maximum current that can safely be carried by the wire. Why is this?
Does the maximum permissible current depend on the length of the wire?
Does it depend on what the wire is made?
Does the maximum permissible current depend on the length of the wire?
Does it depend on what the wire is made?
Electricity and Magnetism
A conducting rod of length l is hinged at point O. It is free to rotate in a vertical plane. There exists
a uniform magnetic field B (into the plane)
in horizontal direction. The rod is released from the position shown. The
potential difference between the two ends of the rod is proportional to
a uniform magnetic field B (into the plane)
in horizontal direction. The rod is released from the position shown. The
potential difference between the two ends of the rod is proportional to
Electricity and Magnetism
Suppose we have a magnet and a coil at sufficiently large distances apart such that any movement of magnet can not be known instantly at the coil, as change in magnetic field travels at the speed of light.
Now, if i give magnet some kinetic energy. After moving to some distance, i stop the magnet.
This change in magnetic field reaches to coil and it will generate current opposing motion of magnet. But, magnet is already at rest so when this opposing magnetic field will reach at the magnet, the magnet will gain kinetic energy in opposite direction and this will in turn produce current in coil again.
isn't this violating energy conservation law, as magnet is not going to feel any resistance instantaneously.
Now, if i give magnet some kinetic energy. After moving to some distance, i stop the magnet.
This change in magnetic field reaches to coil and it will generate current opposing motion of magnet. But, magnet is already at rest so when this opposing magnetic field will reach at the magnet, the magnet will gain kinetic energy in opposite direction and this will in turn produce current in coil again.
isn't this violating energy conservation law, as magnet is not going to feel any resistance instantaneously.
Electricity and Magnetism
A circular loop of radius R is kept in a uniform magnetic field pointing perpendicular into the plane of paper.
When a current I flows in the loop, the tension produced in the loop is
1)BIR
2)BIR/2
3)2BIR
4)ZERO
When a current I flows in the loop, the tension produced in the loop is
1)BIR
2)BIR/2
3)2BIR
4)ZERO
Electricity and Magnetism
Two charges lie in a line along the x axis. Charge 1 is q1 = 1.1 C and charge 2 is q2 = 2.5 C. They are each a distance of d = 0.061 m from the origin.
What is the distance on the x-axis from the origin at which the electric field will be zero. Give your answer in meters.
What is the distance on the x-axis from the origin at which the electric field will be zero. Give your answer in meters.
Electricity and Magnetism
Hello, I have one question, which is a bit related to magnetism.
We know such physical phenomenon as Villari effect, which relates the magnetic and the mechanical properties of material. So, is it possible that Garofalo's equation which expresses material creep strain-time curve and the expression of longitudinal relaxation of magnetization vector (from NMR) are interrelated somehow too? This question arises because the form of these formulas is very similar.
We know such physical phenomenon as Villari effect, which relates the magnetic and the mechanical properties of material. So, is it possible that Garofalo's equation which expresses material creep strain-time curve and the expression of longitudinal relaxation of magnetization vector (from NMR) are interrelated somehow too? This question arises because the form of these formulas is very similar.
Electricity and Magnetism
How is static electricity used to control air pollution?
How does a Xerox machine work?
What is the benefit of using static electricity to paint cars?
How does a Xerox machine work?
What is the benefit of using static electricity to paint cars?
Electricity and Magnetism
q1,q2,q3 charges placed on a bisector triangle in a straight line q1,q3 at edges and q2 at center P is a point placed at top of the triangle. q1=q2=-q3=2uc. distance between q1q2=q2q3=2cm,pq1=pq3= 4cm.determine the magnitude and the direction of the electric field at point P.
Electricity and Magnetism
A copper wire of diameter 1mm and length 30m is connected across a battery of 2 V.calculate the current density in the wire and drift velocity of electrons
