in a heater coil 2ampere of electric current passes for 1second 400 joule of heat produced The Resistance of the coil in Ohm unit is what
Answers
In a heater coil 2 A of current passes for 1 second and 400J of heat is produced then the resistance of the coil is 100 Ω.
Explanation:
The electric current in the heater coil, I = 2 A
The time for the flow of current, T = 1 second
The heat produced, H = 400 J
Let the resistance of the coil be “R” Ω.
We know the formula for the heat produced in a heater coil is given by,
H = I²RT
Substituting the given values
⇒ 400 = (2)² * R * 1
⇒ R = 400 / 4
⇒ R = 100 Ω
Thus, the resistance of the coil is 100 Ω.
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