+0

electrical charges ..

0
278
8
+1832

I want explanation for question number 5 . .

physics
xvxvxv  Feb 19, 2015

#6
+26619
+15

Original force on charge 1 from the others f = K(q1*q2/d2 + q1*q3/(ā2*d)2 + q1*q4/d2) where K is a constant (I've assumed d1 and d3 are on opposite corners).

(Strictly, we should add these as vectors, but that's an unnecessary complication here.)

If all the q terms are multiplied by 2 and everything else remains the same it is easy to see that a factor of 4 increases each term, and hence the force on charge 1 quadruples.  The same argument applies to all the other charges, so SevenUp is correct.

.

Alan  Feb 23, 2015
Sort:

#1
+92164
+5

Does anyone want to answer one of 315's physics questions?

Melody  Feb 20, 2015
#2
+1832
0

Any one ?

xvxvxv  Feb 21, 2015
#3
+394
+15

I believe the answer is C, they quadruple. Iām not absolutely certain, but it is logical because each charge increases 100% and there are 4 charges. I know that the potential at any point on the square is the algebraic sums of the individual charges. So a change of magnitude of a charge is directly proportional.

Alan can verify the accuracy or error of my statements.

Your question was lost in the sea, even after Melody bumped it.

_7UP_

SevenUP  Feb 21, 2015
#4
+1832
+5

Thank you Seven up .. amd waiting for Alan .. ~

xvxvxv  Feb 21, 2015
#5
+92164
+5

Alan, could you please take a look at this question.

I think 315 and SevenUp are both keen to see your answer.

Melody  Feb 22, 2015
#6
+26619
+15

Original force on charge 1 from the others f = K(q1*q2/d2 + q1*q3/(ā2*d)2 + q1*q4/d2) where K is a constant (I've assumed d1 and d3 are on opposite corners).

(Strictly, we should add these as vectors, but that's an unnecessary complication here.)

If all the q terms are multiplied by 2 and everything else remains the same it is easy to see that a factor of 4 increases each term, and hence the force on charge 1 quadruples.  The same argument applies to all the other charges, so SevenUp is correct.

.

Alan  Feb 23, 2015
#7
+92164
+5

Thanks Alan

Melody  Feb 23, 2015
#8
+1832
+5

Thank you Alan to make it clear ..

thank you Melody and seven up

xvxvxv  Feb 25, 2015

31 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details