Concept explainers
(a)
The current in each resistor
(a)
Answer to Problem 90P
The current in each resistor is
Explanation of Solution
Given:
The voltage of the battery is
The circuit is shown in figure.
Figure (1)
Formula used:
The expression for the Kirchhoff’s junction ruleis given by,
The expression for the Kirchhoff’s loop rule is given by:
Calculation:
Applying the Kirchhoff’s loop rule to the outside loop of the circuit:
Similarly, apply the Kirchhoff’s loop rule to the inside loop at the LHS of the circuit:
Apply the Kirchhoff’s junction rule,
On solving (1) and (2) equation,
Conclusion:
Therefore, the current in each resistor is
(b)
The power supplied by each source of emf.
(b)
Answer to Problem 90P
The power supplied by each source of emf is
Explanation of Solution
Formula used:
The expression for the power supplied by emf source is given by,
Calculation:
The power delivered by the source of emf
The power delivered by source of 4V is calculated as,
Conclusion:
Therefore, the power supplied by each source of emf is
(c)
The power delivered to each resistor
(c)
Answer to Problem 90P
The power delivered to each resistor is
Explanation of Solution
Formula used:
The expression for the power delivered by the resistoris given by,
Calculation:
The delivered by the
Similarly,
Conclusion:
Therefore, the power delivered to each resistor is
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Chapter 25 Solutions
Physics for Scientists and Engineers
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