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Electricity and Magnetism
where does the Earth's magnetism come from?
Electricity and Magnetism
Classify substances in nature according to their magnetic properties?
Electricity and Magnetism
The voltage of the X Ray tube is 80kv calculate the maximum energy and the shortest wavelength of the Xray photon
Electricity and Magnetism
Three charged particles are arranged on corners of square .suppose the +2q charge at the left corner is removed.then does the magnitude of the field at the upper right corner
Electricity and Magnetism
A transfirmer being used to operate a 6V 48W heater from 240V a.c. supply. Given that Ns=100
Calculate the number of turns in primary coil .
Calculate the number of turns in primary coil .
Electricity and Magnetism
A positive charge Q1 = +250.0 μC is located at a point X1 = -2.00 m, a negative charge Q2 = -150.0 μC is located at a point X2 = 3.00 m and a negative charge Q3 = -200.0 μC is located at a point X3 = 6.00 m.a. Draw free body diagrams for the electric force acting on Q1, Q2 and Q3.b. Find the magnitude of the force between Q1 and Q2.c. Find the magnitude of the force between Q1 and Q3.d. Find the magnitude of the force between Q2 and Q3.e. Find the magnitude and direction of the net electric force on charge Q1.f. Find the magnitude and direction of the net electric force on charge Q2.g. Find the magnitude and direction of the net electric force on charge Q3.
Electricity and Magnetism
The loss of energy due to hysteresis when 5kg of iron is subjected for 1hour to cylic magnetic changes of frequency 25cycles/sec, if the hysteresis loop represents a loss of 2500ergcm^(-3)cyclic^(-1) and density of iron is 7.8gmcm^(-3) is (in jouls)?
Electricity and Magnetism
Two coils have mutual inductance of 3.25 x 10-4
. The current in the first coil
increases at a rate of 830 A/s. What is the magnitude of the induced emf in the coil?
. The current in the first coil
increases at a rate of 830 A/s. What is the magnitude of the induced emf in the coil?
Electricity and Magnetism
Current flows south in a wire in a magnetic field that is directed vertically upward.
a) Sketch the situation described above.
b) In what direction is the force?
An electron traveling east enters a magnetic field that is directed downward.
a) Sketch the situation described above.
b) Sketch the resulting path of the electron
a) Sketch the situation described above.
b) In what direction is the force?
An electron traveling east enters a magnetic field that is directed downward.
a) Sketch the situation described above.
b) Sketch the resulting path of the electron
Electricity and Magnetism
Determine the force between two electrons at (a) 10^-10 m apart (b) 10 ^-15 m apart (c) 10 ^-20 apart .
Is the force attarctive or repulsive ? If we take a proton and electron what would be the change in the magnitude and direction of force ?
Is the force attarctive or repulsive ? If we take a proton and electron what would be the change in the magnitude and direction of force ?
