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EXAMINATION BRANCH QUESTION BANK Name of the branch: ECE Year & Sem:II-II SECTION : ECE-A Name of the subject: ELECTROMAGNETIC THEORY AND TRANSMISSION LINES (EMTL) Name of the faculty, Designation & Mobile number: CH. NIRMAL, ASST.PROF, 9989173731 Date of Examination: Academic Year: 2016-17 NOTE: All the faculty requested to use Question Style - Calibri and Size - 12 UNIT-I S.N0 1 2 3 4 5 6 7 8 9 10 11 12 APPEARED IN (R05,R07, R09, R13) MARKS Assigned Define scalar and vector quantity Define the following terms. A)operator del B)Gradient of Ø C)The divergence D) The curl. R 07 6 R07 8 Explain about vector integral calculus. A parallel plate capacitor has plates 0.25mm apart and dielectric with relative permeability of 4.Determine the electric field intensity and the voltage between plates if the surface charge is 5×10-6c/m2. Define capacitor and capacitance and determine the capacitance of parallel plate capacitor. R05 5 R09 8 R07 10 Derive an expression of equation of continuity. R05 8 Define electric field and electric field intensity. R13 6 QUESTION Explain about different types of charge distributions. 8 State and explain coulomb’s law in detail? Find the force on charge q1,100µC,due to charge q2,300µC,where q1 is at (0,1,2)m and q2 at (3,0,0)m 8 R13 8 Determine the electric field intensity due to infinite line charge? R07 8 Derive the expression for energy density in electrostatic fields? R09 10 13 14 15 State &explain Gauss’s law in detail? R09 10 Determine the electric field due to a surface charge? Define work done, potential difference and electric potential and potential gradient. R09 10 R05 8 APPEARED IN (R05,R07, R09, R13) MARKS Assigned UNIT-II S.N0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QUESTION State and explain Biot-Savart’s law? R09 6 Determine Magnetic field Intensity due to finite length current carrying conductor? R07 8 State and explain the Ampere’s Circuit Law? Magnetic field Intensity due to Infinite Line Current(Ampere’s Law application)? R05 8 R13 8 Magnetic field Intensity due to Infinite sheet of current? R09 8 Magnetic field Intensity due to Infinitely long Co-axial Transmission line? R09 8 Define Magnetic flux density and Magnetic field Intensity? R13 8 Write the Maxwell’s Equations for Static Electric and Magnetic fields? Calculate the magnetic flux density at the centre of a current carrying loop when the radius of loop is 2cm, loop current is 1m A. and loop is placed in air? R07 8 R09 4 R09 8 R07 8 R07 6 R13 8 R05 R07 5 8 Derive the Expression for Electric Potential due to a dipole? What are the dielectrics and explain the behavior of conductors in an electric field. Define Dielectric constant, Isotropic dielectrics and Homogeneous dielectrics Find the Incremental field strength at P2 due to the current element of 2π aZ μA-m at P1. The coordintets of P1 and P2 are (4,0,0) and (0,3,0) respectively.? Define Relaxation Time? And Find the relaxation time of Sea water whose dielectric constant 81 and Conductivity is 5 Ʊ/m? Point charges 1mC and -2mC are located at (3,2,-1) and (-1,-1,4) respectively. Calculate the Electric force on a10 nC charge located at (0,3,1) and The Electric field Intensity at that point?