How many 176 Ω resistors (in parallel) are required to carry 5 A on a 220 V line?

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asked Jun 24, 2017 in Physics by Kundan kumar (49,132 points) 34 380 1015

1 Answer

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answered Jun 24, 2017 by Vikash Kumar (144,729 points) 8 11 21
selected Jun 28, 2017 by Kundan kumar
 
Best answer

Let the total number of resistors be x.
Given that:
Current I = 5 A and Potential Difference V = 220 V
According to Ohm’s law, V = IR

Now for x number of resistors of resistance 176 Ω, the equivalent resistance of the resistors connected in parallel is 44 Ω.

Therefore, 4 resistors of 176 Ω are required to draw the given amount of current.

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