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Lakhmir Singh & Manjit Kaur - Physics

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Q. 94.3( 32 Votes )

A resistor has a

Class 10th Lakhmir Singh & Manjit Kaur - Physics 1. Electricity

Answer :

We Know according to Ohms Law that:-
V= IR
Where V= Voltage/Potential Difference
          I= Current
          R=Resistance
According to Question :-V= 220V
                                   I= 5A
∴ Total Resistance of the Combination is :-
Suppose x resistors should be connected in parallel to draw a current of 5A

for parallel combination:-

1/R = 1/R₁ +1/R₂+ 1/R₃........1/R_X(Where Resistance of each Resistor is 176Ω)

According to the question,

R_Combination=176/x
⇒44=176/x( We know from above the total resistance of combination)

x=176/44=4 resistor
Hence 4 resistors each of 176Ω should be connected in parallel so as to draw the current of 5A from a 220 volt supply line.

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