Question

What is the resistance of the coil of wire in an electric stove if it is connected to a 220V line and the current passing through it is 8A?


GIVEN
REQUIRED TO FIND
EQUATION/FORMULA
SOLUTION
ANSWER

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Answer 1

Given, Potential Difference = 220V

           Current = 8A

Required to find, Resistance = ?

We know that V = IR

So, 220V = 8A x R

R = 220V/8A

R = 27.5 Ω

∴ The resistance of the coil of wire is 27.5 Ω.

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Answer 2

Given : An electric stove  connected to a 220V line and the current passing through it is 8A

REQUIRED TO FIND : resistance of the coil of wire in the electric stove

EQUATION/FORMULA  

OHM's LAW

I = V/R

I = current

V = voltage

R = Resistance

Solution:

I = V/R

I = 8 A

V = 220V

R = ?

=> 8 = 220/R

=> R = 220/8

=> R = 55/2

=> R = 27.5 Ω

Resistance of the coil of wire is 27.5 Ω

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