What will be the potential difference?

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SUMMARY

The discussion revolves around a Grade 9 student's physics question regarding the relationship between current, charge, and voltage. The student notes that an ammeter reads 5A over 20 seconds and asks for the voltmeter reading given a battery charge of 1000C. The correct approach involves applying the formula V = Q/T, where V is voltage, Q is charge, and T is time. The expected voltmeter reading can be calculated as V = 1000C / 20s = 50V.

PREREQUISITES
  • Understanding of basic electrical concepts such as current, voltage, and charge.
  • Familiarity with Ohm's Law and its applications.
  • Knowledge of the relationship between charge, current, and time.
  • Basic algebra skills for manipulating equations.
NEXT STEPS
  • Study the principles of Ohm's Law and its implications in electrical circuits.
  • Learn about the relationship between current, charge, and time in electrical systems.
  • Explore practical applications of voltmeters and ammeters in circuit analysis.
  • Investigate the concept of electrical energy and power in relation to voltage and current.
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This discussion is beneficial for high school students studying physics, educators teaching introductory physics concepts, and anyone interested in understanding basic electrical principles.

Acez
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This is my first time on Physics Forum, so if I post this question at the wrong place please don't be annoyed.

I am a Grade 9 student and I came upon this question and don't know how to solve it:

An ammeter gives a reading of 5A when a switch was closed for 20 seconds. If this battery has 1000C of charge, what would the voltmeter read? :confused:

Please help :redface:
 
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1. This question belongs in the Homework and Coursework Section, under Introductory Physics. <it will get moved there>

2. Please read the posting guidelines (see my signature) for posting in the Homework Forums. We can not help you unless you show us your thoughts/efforts first.
 

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