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(a) Show that the charge of B is -100nC.
(b) Calculate the resultant force exerted on C due to A and B.
(c) Show without any calculation, that the resultant force on C cannot be zero if it is now placed between A and B.
A cyclist overcomes a resistive force or 30 N in order to cycle 30 m. It takes her 6 seconds to cycle this distance. Calculate the power of the cyclist
What is electric field.
. The potential field 𝑉 = 2𝑥
2𝑦𝑧 − 𝑦
3
𝑧 exists in a dielectric medium having 𝜀 = 2𝜀0 (a) Does V satisfy
Laplace`s equation? (b) calculate the total charge within the unit cube 0 < 𝑥, 𝑦, 𝑧 < 1𝑚.
what are magnitude and direction of electric field that will just support an electron so that it long in air
A point charge of 1x 10-6C is at centre of Gaussian surface with cubical shape 1m on edge. Find flux through surface?
Question Link: https://ibb.co/xzWC2Ly
Polarization of a wave is
A. direction of electric field
B. direction of magnetic field at some fixed point in space
C. either (a) or (b)
D. none of the above
A uniform plane EM wave incident normally on a plane surface of a dielectric material is reflected with a VSWR of 3. What percentage of incident power that is reflected?
A material has conductivity of 10-2 mho/m and a relative permittivity of 4. The frequency at which conduction current in the medium is equal to displacement current is
