Field Theory Answers

A large and a small container of water with the same temperature have
the same total amounts of internal energy.
the same amounts of internal and external energy.
different amounts of heat.
the same amounts of all forms of energy.

Substance A has a higher specific heat than substance B. With all other factors equal, which requires the most energy to heat equal masses of A and B to the same temperature?
Substance A
Substance B
Both require the same amount of heat.
Answer depends on the density of each substance.

With all other factors equal, the most likely to burn your mouth when taken directly from an oven is a food with
higher specific heat.
lower specific heat.
specific heat is not important in this situation.
more information needed.

The two temperature scales with the same interval step size are the?
Celsius and Fahrenheit.
Fahrenheit and Kelvin.
Kelvin and Celsius.
this does not exist.

The two temperature scales with the same interval step size are the?
Celsius and Fahrenheit.
Fahrenheit and Kelvin.
Kelvin and Celsius.
this does not exist.

Which of the following is the correct unit of k in the equation of a damped harmonic oscillator given as
−bv−kx=ma
, where b is the damping factor and all the symbols have their usual meaning?

Determine the electric potential energy of the system of Charges shown in figure below: (I)3c
(2)5c
(3)4c
(1)3 m
(2)4 m
(3)5 m

A)Using Biot-Savart Law,obtain an expression for the magnetic field along the axis of a current loop. B)In the Bohr model of hydrogen atom, the electron follows a circular orbit centred on the nucleus containing a proton. The motion of the electron along the circular orbit constitutes a current. Calculate the magnetic field produced by the orbiting electron at the site of the proton. C)A fuse in an electric circuit is designed to open the circuit like a switch when the current exceeds a preset value. If a fuse is made of material that melts when the current density reaches 400 A cm^2, what is the diameter of the wire needed to limit the current to 0.30 A?

A)Do the following fields satisfy all four Maxwell's equations? E(t) = E0 sin x sin t. B (Vector) = B(vector) 0 cos x cos t. B)In a cyclotron, the diameter of the pole faces is 100 cm and the magnetic field between the pole faces is 0.60 T.The cyclotron is used for accelerating protons. Calculate the kinetic energy of proton in eV and speed of the proton as it emerges from the cyclotron. Also determine the cyclotron frequency. C)Obtain a relation between the refractive index and polarisability of a dielectric material.

the electric potential difference between two points A and B IS 42v . what is the work done by an external agent in caring an charge of 5.0x10-5 from A to B at constant speed?