Identifying Electric Charge on Objects

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Homework Help Overview

The discussion revolves around identifying the possible quantities of excess electric charge on an object, specifically in the context of elementary charges and their corresponding values in coulombs.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between elementary charges and their values in coulombs, questioning whether certain quantities can represent whole or fractional charges. There is also a discussion about the vagueness of the term "object" and its implications for charge identification.

Discussion Status

Some participants have offered insights regarding the validity of specific charge values in relation to elementary charges, while others have raised questions about the completeness of the original problem statement. Multiple interpretations of the charge quantities are being explored without reaching a consensus.

Contextual Notes

There is an indication that the original problem may lack clarity regarding the type of object being referenced, which affects the discussion on charge identification.

zelda1850
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Homework Statement



which quantity of excess electric charge could be found on an object

1) 6.25 x 10 exponenet -19 c
2) 4.80 x 10 exponent -19 c
3) 6.25 elementary charges
4) 1.60 elementary charges

Homework Equations



i know that 1.60 x 10 exponenet - 19 c is one element charge

The Attempt at a Solution



but i don't know how many charges are in a object
 
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Can you find 2.5 elementary charges in an object?
 
The simplest charge on an object is that which you stated 1.6 \times 10^{-19}C, which is one electronic charge.

An 'object' is far too vague, this doesn't give us any information on the type of object, whether it is charged/uncharged or +ve/-ve charge.

Are you sure you aren't missing any of the question?
 
is it right that 4.80 x 10 exponenet - 19 c work since it gives 3 elementary charge
 
zelda1850 said:
is it right that 4.80 x 10 exponenet - 19 c work since it gives 3 elementary charge

Bingo, as all the others are fractions of an elementary charge.

Glad you weren't fooled by the 4th choice, I assume many people will be.
 

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