COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 16, Problem 28QAP
To determine
(a)
Positive charge in a person due the protons in the molecules present in the body.
To determine
(b)
Net charge in a person
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An object of mass 5 × 10-6 g is placed over a thin positively charged sheet of surface density of charge σ = 4.0 × 10-6C/m2 (figure shown below). Estimate the charge that should be given to this object so that upon release it will not fall down. Calculate the number of electrons that is to be removed to give this charge. How much mass loss is caused by this removal of electrons?
An American penny is 97.5% zinc and 2.5% copper and hasa mass of 2.5 g. The net positive charge on all of the protons in a penny has the same magnitude as the charge on the electrons. Estimate the force on either of two objects with this net magnitude of charge if the objects are separated by 2 cm.
A charged wire with a charge density of A=1.2 µC / m is bend into the shape of a ring with a radius of 0.2 m. Determine the total charge of the ring in units of µC
using one decimal point.
Chapter 16 Solutions
COLLEGE PHYSICS
Ch. 16 - Prob. 1QAPCh. 16 - Prob. 2QAPCh. 16 - Prob. 3QAPCh. 16 - Prob. 4QAPCh. 16 - Prob. 5QAPCh. 16 - Prob. 6QAPCh. 16 - Prob. 7QAPCh. 16 - Prob. 8QAPCh. 16 - Prob. 9QAPCh. 16 - Prob. 10QAP
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- Consider the surface charge distributed along the disk with an inner radius of 1m, an outer radius of 2m and a charge density of 3[μC/m2 ] shown in the figure. Since the medium is empty space, (a) Find the total charge on the disk. (b) If a load of 2[μC] is placed at point P1 10m above the axis of the load, find the force that will act on this load.arrow_forwardOn a plastic disc of radius R = 10 cm, an electric charge per unit area has been distributed proportional to the distance to the center, the proportionality constant being c = 2 μC/m. Determine the total load of the disk:arrow_forwardGiven that the human body is mostly made of water, estimate the total amount of positive charge in a 63 kg person.arrow_forward
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