19. The quantity of charge Q in coulombs (C) that has passed through a point in a wire up to time 1 (measured in seconds) is given by Q(1) = t'- 21 + 61 + 2. Find the current when (a) 1 0.5 s and (b) t= 1 s. [See Example 3. The unit of current is an ampere (1 A =IC/s).] At what time is the current lowest?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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19. The quantity of charge Q in coulombs (C) that has passed
through a point in a wire up to time / (measured in seconds) is
given by Q()= r'- 2r + 61 + 2. Find the current when
(a) I 0.5 s and (b) t = 1 s. [See Example 3. The unit of
current is an ampere (1 A 1C/s).J At what time is the
current lowest?
Transcribed Image Text:19. The quantity of charge Q in coulombs (C) that has passed through a point in a wire up to time / (measured in seconds) is given by Q()= r'- 2r + 61 + 2. Find the current when (a) I 0.5 s and (b) t = 1 s. [See Example 3. The unit of current is an ampere (1 A 1C/s).J At what time is the current lowest?
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