Potential difference is the work done per unit charge. A potential difference of 1 V<span>means that 1 joule of work is done per coulomb of charge. ( </span>1 V<span> = 1 J C</span>-1<span>) Potential difference in a circuit is measured using a voltmeter which is placed in parallel with the component of interest in the circuit.</span>
Answer:
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Explanation:
The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic.
In both graphs, speed will be measured in meters/second.
In graph A, the object travelled a distance of 40 meters in 4 seconds
In graph B, the object is at rest for 5 seconds.
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