Concept explainers
The current through a branch in a linear network is 2 A when the input source voltage is 10 V. If the voltage is reduced to 1 V and the polarity is reversed, the current through the branch is:
- (a) –2 A
- (b) –0.2 A
- (c) 0.2 A
- (d) 2 A
- (e) 20 A
Choose the correct option to find the current through the branch when the polarity is reversed.
Answer to Problem 1RQ
The correct option from the given choices is
Explanation of Solution
Given data:
The input voltage source is
The current through the branch in a linear network is
Calculation:
The circuit is a linear network, and the source voltage is reduced from
The resistance of the branch calculated by using ohms law as follows,
As the voltage is reduced to
Therefore, when the voltage is reduced
The current through the branch when the polarity reversed is
Conclusion:
Thus, the correct option from the given choices is
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Chapter 4 Solutions
ECE 285/286:FUND ELCT CIRCUITS(LL)WACC
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