Does Voltage Change When Resistance Drops in a Series Circuit?

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SUMMARY

In a series circuit, when the resistance of one component decreases, the current flowing through the circuit increases, according to Ohm's Law. This change in current results in an increase in the voltage drop across the remaining components in the circuit. Understanding the relationship between resistance, current, and voltage is crucial for analyzing series circuits effectively. The discussion emphasizes the importance of knowing the configuration of components connected to the power source to accurately predict voltage changes.

PREREQUISITES
  • Understanding of Ohm's Law
  • Basic knowledge of series circuits
  • Familiarity with voltage and current concepts
  • Ability to analyze circuit configurations
NEXT STEPS
  • Study detailed applications of Ohm's Law in circuit analysis
  • Learn about Kirchhoff's Voltage Law for complex circuits
  • Explore the effects of varying resistance on current flow
  • Investigate practical experiments with series circuits using resistors
USEFUL FOR

Electronics students, electrical engineers, and hobbyists interested in understanding the behavior of series circuits and the implications of resistance changes on voltage and current.

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if i have two components in a series circuit and the resistance across one drops, does the pd across the other one increase?
 
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You have not given enough information. We need to know how the components are connected to the source of the pd.
 
Ok, now you have added the word "series" that is the bit of information I needed.

If the resistance drops the current must do what?

Once you understand how the current changes you can then use Ohms Law to see what happens to the voltage drop across the other resistor.
 

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