JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: PH- 103
Paper Title: ELECTGROMAGNETISM
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
1) What do you mean by curl of a rector field? Give its physical significance.
2) The temperature at any point changes according to the following relation : T=4x2+3y2–2z2
3) Calculate the value of grad T at point (1,2,3).
4) State Gauss’s divergence theorem.
5) State Ampere’s circuital law.
6) Define electrical susceptibility and Atomic polarizability.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 Giving the definition of divergence, derive its expression in Carterian Coordinate system.
Q.3 Prove that the Gauss’s law of electrostatics is valid for moving charge.
Q.4 Discuss Biot-Sarart’s law and determine the expression for magnetic field due to long straight current carrying wire using it.
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JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: PH- 103
Paper Title: ELECTGROMAGNETISM
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
1) Write right hand palm rule.
2) What do you mean by free charge density and bound charge density
3) What are polar and non-polar atoms? Give examples also.
4) Write down Gauss’s law for electrostatics and related maxwell’s equation.
5) A solenoid of diameter 4 cm, length 50 cm consists of 2000 turns. Calculate its self inductance.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.5 Define magnetic susceptibility. Explain the difference between magnetizing field H and magnetic field B.
Q.6 Derive the relations for current during charging and discharging of a capacitor in an R–C circuit. Also give importance of time constant.
Q.7 How was the concepts of displacement current helpful in removing discrepancy in Ampere’s law? Prove that :V X H = J + D