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Electricity and Magnetism
An electron, with a mass of 9.1 x 10–31 kg and charge of 1.6 x 10–19 C, is
accelerated to a velocity of 4.0 x 106
m/s then enters a uniform magnetic field
of 5.0 x 10–3 T at an angle of 90° to the direction of travel.
a. What is the radius of the circular path it follows?
b. Through what potential difference was the electron accelerated?
accelerated to a velocity of 4.0 x 106
m/s then enters a uniform magnetic field
of 5.0 x 10–3 T at an angle of 90° to the direction of travel.
a. What is the radius of the circular path it follows?
b. Through what potential difference was the electron accelerated?
Electricity and Magnetism
Analysis of a rock sample shows that only 1/16 of the original amount of chlorine-36 remains in
the rock. Estimate the age of the rock given that the half-life of chlorine-36 is 3.0 x 105
a
the rock. Estimate the age of the rock given that the half-life of chlorine-36 is 3.0 x 105
a
Electricity and Magnetism
Two 200 pounds lead ball are separated by the distance of 1 meter .both ball have sam positive charge q.what charge will produce in electrostatic force between the that is of the same order of magnitude as the weight of one ball.
Electricity and Magnetism
A charge which has a magnitude of 18 nanoCoulomb produces an electric field. At a distance r the strength of Electric field is equal to . How far is the source charge from the charge?
Electricity and Magnetism
. Consider a frame S
0 moving with a velocity v along its x
0 axis with respect to another frame
S. Also consider the axes of the two frames to be aligned at t = t
0 = 0
(a) First consider Galilean transformations. Write down the matrix which implements this
transformation.
(b) Now let us consider Lorentz transformations. Write down the matrix which implements
the above Lorentz transformation (also called a Lorentz boost).
(c) Suppose you have a Lorentz boost along x by a velocity vx followed by a boost along y
by velocity vy. What is the matrix for the successive transformations? Would one have
got the same matrix if the order of transformations were reversed? What does this say
about Lorentz transformations in general?
0 moving with a velocity v along its x
0 axis with respect to another frame
S. Also consider the axes of the two frames to be aligned at t = t
0 = 0
(a) First consider Galilean transformations. Write down the matrix which implements this
transformation.
(b) Now let us consider Lorentz transformations. Write down the matrix which implements
the above Lorentz transformation (also called a Lorentz boost).
(c) Suppose you have a Lorentz boost along x by a velocity vx followed by a boost along y
by velocity vy. What is the matrix for the successive transformations? Would one have
got the same matrix if the order of transformations were reversed? What does this say
about Lorentz transformations in general?
Electricity and Magnetism
In a Digital multimeter what will be voltage reading if we connect both terminals to each other (in voltage mode or resistance mode).
Electricity and Magnetism
MAGNETIC FIELD CAN BE GENERATED BY AN ELECTRIC CURRENT
Electricity and Magnetism
8. a) A wire loop of resistance 10 and radius 10 cm is kept in the plane of this
paper in a uniform magnetic field . B
The direction of B
is perpendicular to the
plane of the page and points out of it and its magnitude is increasing at the rate
of 0.50Ts . 1 Determine the magnitude and direction of the induced current in the
loop.
paper in a uniform magnetic field . B
The direction of B
is perpendicular to the
plane of the page and points out of it and its magnitude is increasing at the rate
of 0.50Ts . 1 Determine the magnitude and direction of the induced current in the
loop.
Electricity and Magnetism
The magnetic flux density at the centre 100 loop circular coil of 15cm diameter can be the same as to the magnetic flux density at the end of a 200 turns 500cm long solenoid with a current of 3A. estimate the magnitude of current that must flow through circular coil for this to happen (Take permeability of the free space as 4π × 10–7 H/M
Electricity and Magnetism
Determine the dipole moment of the system “electron – nucleus” of a hydrogen atom considering this atom as a dipole. Distance between the electron and the nucleus is l=10^-8 cm.
