Concept explainers
(a)
Redraw the circuit to measure the current through
(a)
Answer to Problem 79P
The circuit is redrawn to measure the current through
Explanation of Solution
The ammeters should be connected in series with the resistor to measure the current flowing thought it.
Conclusion:
The circuit is shown below,
(b)
Find the current through the
(b)
Answer to Problem 79P
The current through the
Explanation of Solution
The ammeter is connected in series with the
From Kirchhoff’s junction rule,
From Kirchhoff’s loop rule for the left mesh,
From Kirchhoff’s loop rule for the right mesh,
Conclusion:
Solve equation III to get
Substitute the above equation in equation I.
Substitute the above equation in equation II.
Therefore, the current through the
(c)
Find the current through the
(c)
Answer to Problem 79P
The current through the
Explanation of Solution
The ammeter is connected in series with the
From Kirchhoff’s loop rule for the left mesh,
From Kirchhoff’s loop rule for the right mesh,
Conclusion:
Solve equation V to get
Substitute the above equation in equation I.
Substitute the above equation in equation IV.
Therefore, the current through the
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Chapter 18 Solutions
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