a heating element supplies 400kilo joules in 40 minutes .Find the potential difference a cross the elements when current is 2amp
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To understand roads and subways at new places.
To calculate distance between two places.
To know whether there are two or more paths to the same place and which is the shortest.
We can get information about mountains, rivers, valleys or any other thing, which may come on the way, and we can prepare for that.
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