
(a)
The value of the current in ammeter
(a)

Answer to Problem 112P
The value of the current in ammeter
Explanation of Solution
Write the expression for the current through the ammeter
Here,
Write the expression for the equivalent resistance.
Here,
Use equation (II) in (I) to solve for
Conclusion:
Substitute
Therefore, the value of the current in ammeter
(b)
The value of the current in ammeter
(b)

Answer to Problem 112P
The value of the current in ammeter
Explanation of Solution
Write the expression for the resistance across the branch through the ammeter
Write the expression for the potential difference right to the ammeter
Write the expression for the current through the ammeter
Use equation (IV) and (V) in (VI) to solve for
Conclusion:
Substitute
Therefore, the value of the current in ammeter
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Chapter 18 Solutions
Physics
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