Concept explainers
To Find: The current an appliance uses when the power is 147 watts and the resistance is 5 ohms.
Answer to Problem 63E
The required current an appliance uses is
Explanation of Solution
Given information:
The electric current l (in amperes) an appliance uses is given by the formula
The power is 147 watts and the resistance is 5 ohms.
Calculation:
The power is 147 watts.
The resistance is 5 ohms.
(Substitute the values of P and R)
(Quotient property of square roots)
(Factor using the greatest square factors)
(Simplify)
(Multiply by
(Simplify)
Therefore, the current an appliance uses is
Chapter 9 Solutions
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