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Phy101 Assignment Fall 2015

Assignment 3: (Spring 2015)

PHYSICS (PHY101)

TOTAL MARKS: 25

Due Date: 25/01/2016

DON’T MISS THESE Important instructions:

      To solve this assignment, you should have good command over first 29 lectures.

      Upload assignments (Microsoft word) properly through LMS, (No Assignment will be     accepted through email).

      Write your ID on the top of your solution file.

      All students are directed to use the font and style of text as is used in this document.

      Don’t use colorful back grounds in your solution files.

      Use Math Type or Equation Editor etc for mathematical symbols.

      Write to the point and avoid from unnecessary explanation. Don’t copy/paste from internet or any other source.

      This is not a group assignment, it is an individual assignment so be careful and avoid copying others’ work. If some assignment is found to be copy of some other, both will be awarded zero marks. It also suggests you to keep your assignment safe from others. No excuse will be accepted by anyone if found to be copying or letting others copy.

Don’t wait for the last date to submit your assignment.

Question # 1

Two particles having charges q1 = 0.500 nC and q2 = 8.00 nC are separated by a distance of 1.20 m. At what point along the line connecting the two charges is the total electric field due to the two charges equal to zero?                                                                                                                                Marks 8

Question # 2

If the electric field in a region of space is zero, can you conclude that no electric charges are in that region? Explain.                                                                                                                                                           Marks 5

Question # 3

If the total charge inside a closed surface is known but the distribution of the charge is unspecified, can you use Gauss's law to find the electric field? Explain.                                                        Marks 5

Question # 4

Assume that a deuteron has a mass of 3.34 × 10-27Kg and a charge of +e. It travels in a circular path with a radius 6.96mm in a magnetic field with magnitude 2.50T. Value of charge on electron is 1.6 × 10-19C.

Find the speed of the deuteron.                                                                                                         Marks 7

И снова покачал головой, когда она скрылась из виду. Дойдя до конца туннеля, Сьюзан уткнулась в круглую сейфовую дверь с надписью СЕКРЕТНО - огромными буквами. Вздохнув, она просунула руку в углубление с цифровым замком и ввела свой личный код из пяти цифр.

Через несколько секунд двенадцатитонная стальная махина начала поворачиваться.