It's for all these in brilliant
Electricity and Magnetism
Level
1
How many 176 ohm resistor (in parallel) are required to carry 5 ampere on a 220volt
4
6
8
2
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1 solution
Let the number of resistors=n Therefor 1/R=1/176+1/176+......n times R=176/n Now ,I=V/R 5=220/176/n N=5×176/220=4 So, n=4