Physics: Principles with Applications
Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Question
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Chapter 21, Problem 42P
To determine

What is the potential difference across the coil at this moment?

Expert Solution & Answer
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Answer to Problem 42P

Solution:

The potential difference (ΔV)across the coil is 7.18 V.

Explanation of Solution

Given info:

The resistor (R)has a value of 2.25 Ω, the current (I)across the inductor is 3.00 A . The coil has an inductance (L) of 112 mH and the current is increasing at a rate (ΔI/Δt )of 3.80 A/s.

Formula used:

The potential difference (ΔV) across the coil is the sum of the potential drop across the resistor and inductor and can be obtained using :

ΔV=IR+LΔIΔt (1)

Where:

ΔV is called potential difference

I is called current

R is called resistance

L is called inductance

ΔI/Δt is called the rate of current

Calculation:

Inserting data given info into equation (1)we have:

ΔV=(3.00A)(2.25Ω)+(0.112H)(3.80A/s) (2)

Solving we obtain:

ΔV=7.18 V (3)

Conclusion:

According to result (3)the potential difference (ΔV)across the coil is 7.18 V.

Chapter 21 Solutions

Physics: Principles with Applications

Ch. 21 - Prob. 11QCh. 21 - Prob. 12QCh. 21 - Prob. 13QCh. 21 - Prob. 14QCh. 21 - Prob. 15QCh. 21 - Prob. 16QCh. 21 - Prob. 17QCh. 21 - Prob. 18QCh. 21 - Prob. 19QCh. 21 - Prob. 20QCh. 21 - Prob. 21QCh. 21 - Prob. 22QCh. 21 - Prob. 23QCh. 21 - Prob. 24QCh. 21 - Prob. 1PCh. 21 - Prob. 2PCh. 21 - The rectangular loop in Fig. 21-5813 is being...Ch. 21 - If the solenoid in Fig. 21-59 |D is being pulled...Ch. 21 - An 18.5-cm-diameter loop of wire is initially...Ch. 21 - A fixed 10.8-cm-diameter wire coil is...Ch. 21 - A 16-cm-diameter circular loop of wire is placed...Ch. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - A circular loop in the plane of the paper lies in...Ch. 21 - Prob. 11PCh. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21PCh. 21 - A simple generator has a square armature 6.0 cm on...Ch. 21 - Prob. 23PCh. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - Prob. 26PCh. 21 - Prob. 27PCh. 21 - Prob. 28PCh. 21 - Prob. 29PCh. 21 - Prob. 30PCh. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - Prob. 38PCh. 21 - Prob. 39PCh. 21 - Prob. 40PCh. 21 - Prob. 41PCh. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - Prob. 44PCh. 21 - Prob. 45PCh. 21 - Prob. 46PCh. 21 - Prob. 47PCh. 21 - Prob. 48PCh. 21 - Prob. 49PCh. 21 - Prob. 50PCh. 21 - Prob. 51PCh. 21 - Prob. 52PCh. 21 - Prob. 53PCh. 21 - Prob. 54PCh. 21 - Prob. 55PCh. 21 - Prob. 56PCh. 21 - (a) What is the reactance of a well-insulated...Ch. 21 - Prob. 58PCh. 21 - Prob. 59PCh. 21 - Prob. 60PCh. 21 - Prob. 61PCh. 21 - Determine the total impedance, phase angle, and...Ch. 21 - Prob. 63PCh. 21 - Prob. 64PCh. 21 - Prob. 65PCh. 21 - Prob. 66PCh. 21 - Prob. 67PCh. 21 - The variable capacitor in the tuner of an AM radio...Ch. 21 - Prob. 69PCh. 21 - A resonant circuit using a 260-nF capacitor is to...Ch. 21 - Prob. 71PCh. 21 - Prob. 72GPCh. 21 - Prob. 73GPCh. 21 - Prob. 74GPCh. 21 - Prob. 75GPCh. 21 - Prob. 76GPCh. 21 - Power is generated at 24 kV at a generating plant...Ch. 21 - Prob. 78GPCh. 21 - Prob. 79GPCh. 21 - Prob. 80GPCh. 21 - Prob. 81GPCh. 21 - Prob. 82GPCh. 21 - Prob. 83GPCh. 21 - Prob. 84GPCh. 21 - Prob. 85GPCh. 21 - Prob. 86GPCh. 21 - Prob. 87GPCh. 21 - Prob. 88GPCh. 21 - Prob. 89GP
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