Question

o1K -B Time o anda0 minutes St g = 10s/s2 ial prc tiens. Note: Trn smply calulairm, you maty ase Directious cmpl Pach of the questina on incomplese aleans below is fellowod by Sour wggested LUwe Selea the one thur is best in each case and then fill in the oorresponding crcle on the ansver shect. 1.3A 2. Which ef tae fnlirairg is a comect dessriptice af the haeid A 1 A oraand the ong of the page of the page Ci n stows field vecars for Inu particles with charges n 4 swialind an initiany uncharged coron, with coa represee their graariceal fleld What are the final chrges on the capachors a leng tine er ihe swin'h ia clnsed? 2 A saudent is Coing an esperinest in which cauxing a palem of dark and bright lisei on a sexrty screes. The studeng has a red light ard a ron light.The sde abo bas two icts of dits Charge Charge Co on CA) folowing lists the coloe and it separatice th l creade he pattern with dhe greaiest seporetio between the hright ines? (A) Grees C) Red 뜨 Lange TD) DI R

Answer 1

1.

(B) it shows field vectors for the two particles with charge of opposite sign and about the same magnitude, and it could not represent their Gravitational field.

Gravity is always attractive.

2.

(B) Green : Small

3.

x + 0.5 = 1.5

x = 1 A towards the bottom of the page

4.

$Q_0 = Q_1 + Q_2$​​​​​​. (conservation of charge)…........(1)

$\frac {Q_0^2}{2C_0}= \frac {Q_1^2}{2C_0}+\frac {3Q_2^2}{2C_0}$. ( conservation of energy)

$Q_0^2 = Q_1^2 +3 Q_2^2$.......(2)

Values of Q1 and Q2 which simultaneously satisfy both (1) and (2) are

$Q_1= Q_0/2, Q_2=Q_0/2$