A circuit contains a battery and resistors, connected in some complex manner. If

Question

A circuit contains a battery and resistors, connected in some complex manner. If the difference in potential across the battery increases, what will happen to the current in the resistors? The current in all resistors connected in parallel will increase, and the current in all resistors connected in series will decreases The current in all resistors connected in parallel will increase, and the current in all resistors connected in series will remain the same The current in all resistors will remain the same, no matter how they are connected. The current in all resistors will increase, no matter how they are connected. The current in all resistors connected in parallel will remain the same, and the current in all resistors connected in series will decreases The current in all resistors connected in parallel will remain the same, and the current in all resistors connected in series will remain the same The current in all resistors will decrease, no matter how they are connected. The current in all resistors connected in parallel will decrease, and the current in all resistors connected in series will remain the same The current in all resistors connected in parallel will decrease, and the current in all resistors connected in series will decreases If a resistor is placed in series with the battery, what will happen to the current in the other resistors? The current in all resistors will increase The current in all resistors will remain the same The current in some resistors can increase, and the current in some resistors can decrease The current in all resistors will decrease Now, one of the resistors is removed, and replaced with a wire (of no resistance). What will happen to the current in the other resistors? The current in all resistors will decrease The current in some resistors can increase, and the current in some resistors can decrease The current in all resistors will increase The current in all resistors will remain the same

Explanation / Answer

. 1.   Part c: The current in some resistors canincrease, and the current in some resistors can decrease. Atfirst blush, the equivalent resistance must decrease whether youplace the wire in parallel or series with the complex array ofresistors; however, if the wire is placed in parallel with one ormore resistors, it will short those resistors driving the currentin its parallel "sisters" to zero. If you were to take twoextremes: First case is the replacement of a single resistorthat is directly across the battery terminals... in this case allcurrents in the other resistors--no matter how complex--would go tozero as you have shorted the source voltage. In the secondcase, if you were to short a resistor that is in series with thesource, the remaining current in the resistor array would have toincrease as there is less resistance between them and the voltagesource. .

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.