Join TSR now and get all your revision questions answeredSign up now

Basic Charge Question

    • Thread Starter
    Offline

    3
    ReputationRep:
    (a) Inside a cell, the energy required to move an electron from the positive to negative terminal is 2.4x10^-19 J, show that the emf of the cell is 1.5V. (Did that) (b) How much energy is transferred when 1 C of charge passes through the cell? (did it, 1.5J) (c) How much charge passes through the cell in 1 minute?The only equation we have been taught that relates time and charge is Q=It, but I don't have a time for which a charge goes through, and nor do I have the current. Please help. Sorry for the *****y formatting, I can't get it to make new paragraphs ;c.
    Online

    3
    ReputationRep:
    question as posed seems to be missing information.

    is there a diagram?
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by Joinedup)
    question as posed seems to be missing information.

    is there a diagram?
    No, I put the entire question here.
    Offline

    3
    ReputationRep:
    (Original post by Shipreck)
    No, I put the entire question here.
    You gave parts a), b) and c) to the question.

    Without knowing the rate at which charge flows (determined by the current flowing around external circuit), part c) cannot be answered.

    Information is missing either in the form of a circuit diagram or in the form of a preamble paragraph - possibly following on from a previous question or relating to a paragraph of descriptive text in your textbook?
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by uberteknik)
    You gave parts a), b) and c) to the question.

    Without knowing the rate at which charge flows (determined by the current flowing around external circuit), part c) cannot be answered.

    Information is missing either in the form of a circuit diagram or in the form of a preamble paragraph - possibly following on from a previous question or relating to a paragraph of descriptive text in your textbook?
    Nope. This is how it was laid out in the book: Question 4: Inside a cell, the energy needed to move an electron from the positive to the negative terminal is 2.4x10^-19J. Show that the emf of the cell is 1.5V. Question 5: (a) How much energy is transferred when 1.0C of charge passes through the cell in question 4?(b) How much charge passes through the cell in 1 minute?.I'm guessing it's just a **** up by the book company, because they have a resistance question in the same section and they haven't covered it yet.
 
 
 
Poll
Which party will you be voting for in the General Election 2017?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.