Question 14 13) A bird lands on a bare copper wire carrying acurrent of 32A. The wire has a cross sectional area of0.13 cm². Find the difference in potential between thebird's feet, assuming they are separated by a distance of6 cm.resistivity of copper = 1.7 x 10-814) What is the minimum number of 65 Ohm resistorsthat must be connected in parallel to produce anequivalent resistance of 11 Ohms or less?15) A 12V battery is connected to three capacitors inseries. The capacitors have the following capacitance:4.5 UF, 12 uF, and 32 uF, Find the voltage acrossthe 32 uF capacitor.16) A particle enters a magnetic field in the positive xdirection. The Magnetic field points in the positive zdirection. The particle feels a force in the positive ydirection. Is the charge on the particle positive ornegative?17) A 0.32 uC particle moves with a speed of 16 m/sthrough a region where the magnetic field has strengthof 1 T. At what angle to the field is the particle movingif the force exerted on it is 4.8 x 10-6 Newtons?

The resistance of the each resistor is R=65 Ω. The equivalent resistance is Req=11 Ω. We have to…

Answered: 14) What is the minimum number of 65…

14) What is the minimum number of 65 Ohm resistors that must be connected in parallel to produce an equivalent resistance of 11 Ohms or less?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

Question 14

13) A bird lands on a bare copper wire carrying a
current of 32A. The wire has a cross sectional area of
0.13 cm². Find the difference in potential between the
bird's feet, assuming they are separated by a distance of
6 cm.
resistivity of copper = 1.7 x 10-8
14) What is the minimum number of 65 Ohm resistors
that must be connected in parallel to produce an
equivalent resistance of 11 Ohms or less?
15) A 12V battery is connected to three capacitors in
series. The capacitors have the following capacitance:
4.5 UF, 12 uF, and 32 uF, Find the voltage across
the 32 uF capacitor.
16) A particle enters a magnetic field in the positive x
direction. The Magnetic field points in the positive z
direction. The particle feels a force in the positive y
direction. Is the charge on the particle positive or
negative?
17) A 0.32 uC particle moves with a speed of 16 m/s
through a region where the magnetic field has strength
of 1 T. At what angle to the field is the particle moving
if the force exerted on it is 4.8 x 10-6 Newtons?

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