Concept explainers
(a)
The joule heat.
(a)
Answer to Problem 1ASA
Joule heating is the process where the energy of an
Explanation of Solution
Joule heating is the process where the energy of an electric current is converted into heat as it flows through a resistance. Joule's first law or the Joule–Lenz law, states that “the power of heat generated by an electrical conductor is proportional to the product of its resistance and the square of the current”. Despite the fact that it has units of power, it is commonly referred to as joule heat. A given amount of electrical energy absorbed in the resistor produces a fixed amount of heat.
(b)
The
(b)
Answer to Problem 1ASA
The energy is lost in the form of heat.
Explanation of Solution
The expression for joule heat is given by,
Here,
Therefore, the energy is lost in the form of heat. The heat which is produced due to the flow of current within an electric wire is expressed in unit of Joules.
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Chapter 27 Solutions
Physics Laboratory Experiments
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