A parabolic rehector tocuses etectromagnetic waves into a beam as shown in the figure. The electromagnetc radation is pulted, with a pulse trequency of 23.0 GHI, and the duration of each pue is 11.00 n. The face of the refector has a radius of 5.00 om, and the average power during each pulse is 26.0 w. (Due te the nature of this problem, do not use reunded intermediate values in vour caloations-induding answers submitted in WebAssign.) (a) What is the wavelength (in om) of these electromagnetic waves? 1.30 cm (n) what is the tota energy (in ) contained in each puise? to Compute the average energy density (in ma/m) inside ach pulse x mam (4) Determine the amplitude of the electric field (in k/m) and magnetic field (in yT) in these electromagnetic waves (e) Assuming that this pulsed beam strikes an absorbing surface, compute the force (in N) exerted on the surface during the 1.00 ns duration of each pulse.

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KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.