Question

Can someone help me with physics? I dont get any anwer in physic forum

Answer 1

go to physicforum.com

Answer 2

ok thanks

Answer 3

This will last forever. It is not like sopenstudy. Please help me

Answer 4

what's your question ?

Answer 5

What are the dimensions for electric charge?
What are the dimensions for the electric field?
Dimensions for potential?
Dimentions for capacitance?

They are a, b c question and I have to choose one

Answer 6

for electrica charge I can choose from:
a) LQ^-1
b (Q^-2)/M
c LT^-2
d Q
e QT^-1

Answer 7

ahh what exactly do you mean by dimension ? What i know is that charge is the product of current and time

Answer 8

I am translating from spanish. So I dont know if that is the way it must be translated into english. But I think we have to do is try to compose the electric charge by using elemental units like m, s, Kg, etc.

Answer 9

Ok since charge = current * time , so the unit for current is Ampere whereas the unit for time is seconds, so the unit for charge comes out to be As -> if that is what you are asking for :S

Answer 10

In the above options that you have given what do L and Q indicate ?

Answer 11

I think they means length and charge.

Answer 12

I think the correct answer is d) Q

Answer 13

If you are asking for the unit of charge then that will be Q

Answer 14

Can you give the options for the second question

Answer 15

dimensions for electric field:
a) LTQ
b) (L^2)(T^-1)(Q^-1)
c) ML(T^-2)(Q^-2)
d) ML(T^-2)(Q^-2)
e) ML(Q-1)

Answer 16

So,
L= Length
T = Temperature
Q = Charge

Answer 17

What's M ?

Answer 18

mass

Answer 19

I think the answer is e) coz E=F/Q

Answer 20

electric field = force / charge

Answer 21

what does force is made of?

Answer 22

As far as i remember force = mass * g

Answer 23

so it will be option c

Answer 24

Im I right?

Answer 25

yeah i guess so , not sure about this one

Answer 26

Ok. Lets try dimensions for potential energy
a) (L^2)(T^2)(Q^2)
b) M(L^2)(T^-2)(Q^-1)
c) ML(T^-1)(Q^-1)
d) MQL(T^-1)
e) L(T^-1)(Q^-2)

Answer 27

Umm well let's see , potential energy = force * length

Answer 28

which means mass * acceleration * length

Answer 29

which further means mass * length^2 *time^-2

Answer 30

According to me the answer would be ML^2T^-2 , but this answer isn't in the options you gave