   Chapter 30, Problem 2PE

Chapter
Section
Textbook Problem

(a) Calculate the mass of a proton using the charge-to-mass ratio given for it in this chapter and its known charge. (b) How does your result compare with the proton mass given in this chapter?

To determine

(a)

The mass of the proton using the charge-to-mass ratio and its charge

Explanation

Given Data:

Given charge-to-mass ratio for proton and charge of proton

Formula Used:

The charge-to-mass of proton is given as

qpmp=9.57×107C/kg

whereqp= Charge of proton

mp= Mass of proton

Calculation:

The charge to mass ratio for proton is

qpmp=9.57×107C/kg

Also, charge to proton,qp=1.6×1019C

Thus, mass of proton is calculated as

qpmp=9.57×107C/kg

Substituting the value ofqp , we get

1

To determine

(b)

The mass of proton calculated in part (a) with the proton mass given in the chapter.

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