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Q. 34

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 925

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Short Answer

The heating element of a hair drier dissipates when connected to a power line. What is its resistance?

In a circuit power is dissipated by resistance only.

See the step by step solution

Step by Step Solution

Step 1: Given information

We have given the values ,

Step 2: Calculation

In a circuit power is dissipated by resistance elements only.

So using formula of power dissipation

Substituting given values in above equation, we get

Hence, required value of resistance is

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