Question

If the resistance of two soldering irons working in 250 V are 500 and 750 .
a. Calculate which one of these will carry more current.
b. Find out which soldering iron has more power.
c. Calculate the heat produced in 5 minutes in the soldering iron having resistance 750 .

Medium

Solution

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a.

Current through 500



Current through 750



b. Soldering iron has less resistance

c.     Or             

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