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Electricity and Magnetism
A transverse wave travelling in the positive
x-direction is represented as
y(x, t) = 5 sin (4.0 t - 0.02 x) cm.
Show that the ratio of maximum
acceleration of the particles of the medium . to
their maximum velocity is 4 : 1.
x-direction is represented as
y(x, t) = 5 sin (4.0 t - 0.02 x) cm.
Show that the ratio of maximum
acceleration of the particles of the medium . to
their maximum velocity is 4 : 1.
Electricity and Magnetism
Sound waves travelling in a liquid are
incident on a liquid-solid interface. The
impedances of the liquid and the solid are
1.43x 106 Nm-1 s and 3.9 x 107 N m-1 s,
respectively. Calculate the percentage of
sound energy reflected back into the liquid.
incident on a liquid-solid interface. The
impedances of the liquid and the solid are
1.43x 106 Nm-1 s and 3.9 x 107 N m-1 s,
respectively. Calculate the percentage of
sound energy reflected back into the liquid.
Electricity and Magnetism
Two mutually perpendicular oscillations
have angular frequency o)0 and amplitudes
al and a2 such that al > a2. If the initial
phase difference between these is 4),
determine the nature of the resultant
oscillation obtained on their superposition.
have angular frequency o)0 and amplitudes
al and a2 such that al > a2. If the initial
phase difference between these is 4),
determine the nature of the resultant
oscillation obtained on their superposition.
Electricity and Magnetism
Ampers law inconsistent with
1)momentum conservation
2) energy conservation
3)charge conservation
1)momentum conservation
2) energy conservation
3)charge conservation
Electricity and Magnetism
What is an electron
Electricity and Magnetism
The direction of deflection of an electron beam in a magnetic field can be determined by
Electricity and Magnetism
a plane electromagnetic wave is incident on the boundary separating the medium of refractive index n1 and n2 at a brewster angle then
1)reflection coefficient is 1
2) transmission quotient is 0 3)transmission coefficient is 1
4)product of reflection coefficient and transmission question is 1
1)reflection coefficient is 1
2) transmission quotient is 0 3)transmission coefficient is 1
4)product of reflection coefficient and transmission question is 1
Electricity and Magnetism
a beam of electrons enters in uniform magnetic field of flux density 1.5 Tesla the energy difference between the electrons whose spin are parallel and antiparallel to the field is
1)1.74×10^-4 eV
2)0.87×10^-4 ev
3)3.48×10^-4 ev
4)2.5×10^-4 ev
1)1.74×10^-4 eV
2)0.87×10^-4 ev
3)3.48×10^-4 ev
4)2.5×10^-4 ev
Electricity and Magnetism
Consider an infinite surface charge in y-z plane with density σ. Electric field at any point in positive x-axis is σ/2ϵ (i hat) and electric field at any point in negative x-axis is -σ/2ϵ (i hat). Thus we see there is a discontinuity of σ/ϵ at the surface (at x=0). What will be the electric field on the surface charge? That is, what will be the electric field at x=0?
Electricity and Magnetism
A uniform plane wave of 10 kHz travelling in free space strikes a large block of a material having ε=9ε_0,μ=4μ_0 and σ=0 normal to the surface.If the incident magnetic field vector is given by B→=10^(-3) sin(ωt-βy)k^ tesla
Write the complete expression for the incident,reflected and transmitted field vectors.
Please explain in detail.
Write the complete expression for the incident,reflected and transmitted field vectors.
Please explain in detail.
