AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
7th Edition
ISBN: 9780357096789
Author: ERJAVEC
Publisher: CENGAGE L
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Textbook Question
Chapter 15, Problem 1SA
- What is represented by the E, I, and R in the formula E = IR?
Expert Solution & Answer
To determine
The representation of E, I and R, in the formula E=IR.
Explanation of Solution
Given:
The formula given is E = IR.
Concept used:
According to Ohm's law at a constant temperature, the voltage across a circuit is directly proportional to the current through it.
The given formula, E = IR
It is a mathematical representation of Ohm's law in which the symbol
E = voltage
I = current
R = resistance in the circuit.
Thus, the voltage in a circuit is equal to the current applied multiplied by the resistance.
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The cable exerts a force of P = 4 kN at the end of the 8-m-long crane boom.
A
P
8 m
B
-x-
I'm
En
▾ Part A
If 0 = 30°, determine the placement x of the boom at B so that this force creates a maximum moment about point O.
Express your answer to three significant figures and include the appropriate units.
x = 9.81 m
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▾ Part B
What is this moment?
Express your answer to three significant figures and include the appropriate units. Assume the positive direction is
counterclockwise.
(Mo) max 43.7
=
E
?
N
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Chapter 15 Solutions
AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
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