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Electricity and Magnetism
Two conducting plates intercepts at angle beta and are held at a potential v. determine the potential and electric fields near the origin using cylindrical polar coordinates
Electricity and Magnetism
You hold a spherical salad bowl 90 cm in front of your face with the bottom of the bowl
facing you. The salad bowl is made of polished metal with a 35-cm radius of curvature. (a)
Where is the image of your 2.0-cm-tall nose located? (b) What are the image’s size, orientation,
and nature (real or virtual)?
facing you. The salad bowl is made of polished metal with a 35-cm radius of curvature. (a)
Where is the image of your 2.0-cm-tall nose located? (b) What are the image’s size, orientation,
and nature (real or virtual)?
Electricity and Magnetism
A circular iron ring has a mean circumference of 1.5 m and cross-sectional area of 0.01 m
2
. A saw cut of 4 mm wide is made in the ring. Calculate themagnetizing current required to produce a flux of 0.8 mwb in the gap if thering is wound with a coil of 175 turns. Assume relative permeability of iron as400 and leakage factor 1.25
2
. A saw cut of 4 mm wide is made in the ring. Calculate themagnetizing current required to produce a flux of 0.8 mwb in the gap if thering is wound with a coil of 175 turns. Assume relative permeability of iron as400 and leakage factor 1.25
Electricity and Magnetism
The unit of permitivity is
Electricity and Magnetism
Electric field is which type of physical quantity?
Electricity and Magnetism
two conducting plates intercepts at angle beta and are held at a potential v. determine the potential and electric fields near the origin using cylindrical polar coordinates
Electricity and Magnetism
How does a wave group get constituted ?
Obtain an expression for the velocity of a
wave group. What is the relation connecting
the group and phase velocities ?
Obtain an expression for the velocity of a
wave group. What is the relation connecting
the group and phase velocities ?
Electricity and Magnetism
Two mateeial Ge and Al are cooled from 300k to 600k. What will be its effect on their resistivity
Electricity and Magnetism
a solenoid of length 40 cm and number of turns 1000 turns has an axis parallel to the magnetic meridian. a small needle id placed at its center on a vertical pivot. draw the direction of the magnetic needle and that of the horizontal component of the earth's magnetic field indicating the poles of the needle when the solenoid carries no current.
when the solenoid id traversed by a constant current of 0.005A a magnetic field Bs is created inside it: determine the possible values of the resultant magnetic field created at the center of the solenoid and give a clear diagram for each of the possible cases with the diresction of the current and the polarities of the solenoid.
when the solenoid id traversed by a constant current of 0.005A a magnetic field Bs is created inside it: determine the possible values of the resultant magnetic field created at the center of the solenoid and give a clear diagram for each of the possible cases with the diresction of the current and the polarities of the solenoid.
Electricity and Magnetism
A proton moves perpendicularly to a magnetic field that has a magnitude of 4.20*10^-2=T What is the speed of the particle if magnitude of magnetic force on it is 2.40*10^-14N
