Physics, asked by tajminayesmina, 10 months ago

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Answered by Anonymous
2

Power, P = Work done / time = 45000 / 4 × 60 = 187.5 W

Power, P = I^2R

R = P/I^2 = 187.5 / 36 = 5.2 ohm

Answered by MarshmellowGirl
12

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A soldering rod iron draws n energy of 45000 J in 4 minutes when the current flowing through the element is 6 A. Calculate the resistance of its heating element.

 \large \underline{ \red{ \boxed{ \bf \green{Answer}}}}

5.2 ohm is the resistance of its heating element.

RESISTANCE:-

✿ The S.I Unit of Resistnce is ohm.

✿ Ohms are named after Georg Simon Ohm.

Resistance is an electrical quantity that measures how a device or material reduces the electric current that flows through it. 

POWER:-

✿ Power is the amount of energy transferred per unit time.

✿ The S.I Unit of Power is watt.

✿ Power is scalar quantity.

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