Concept explainers
For the circuit shown in Fig. 29-6, find the current in the 0.96-
Fig. 29-6
The current in the
Answer to Problem 7SP
Solution:
Explanation of Solution
Given data:
Refer to the circuit given in Fig. 29-6.
Formula used:
Kirchhoff’s loop law: The algebraic sum of the potential change in a closed circuit is zero.
In a parallel combination, the voltage remains constant and the current is distributed. In a series combination, the current remains constant and the voltage is distributed.
Write the expression for potential difference from Ohm’s law.
Here,
Explanation:
Consider the following circuit shown in Figure 1.
Apply loop rule to the loop abcda yields, in volts.
Apply loop rule to loop adefa yields, in volts.
Solve further for
Substitute
Thus, this yields that
Therefore, the current in the
Calculate the current
Substitute
Thus, this yields that
Calculate the current flow in the branch ad in Figure 2.
The value of
Calculate the terminal voltage of the battery, whose emf is
Substitute
Thus, the terminal voltage of the battery, whose emf
Calculate the terminal voltage of the battery, whose emf is
Substitute
Thus, the terminal voltage of the battery, whose emf
Conclusion:
Therefore, the current in the
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Chapter 29 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
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