Concept explainers
Choose the correct option from the given choices to mention which is not an example of convection current.
Answer to Problem 1RQ
The correct option from the given choices is (d) Electric current flowing in a copper wire.
Explanation of Solution
Discussion:
Convection current is different from conduction current and does not include conductors and thus does not satisfy Ohm’s law. Convection current occurs when current flows through an insulating medium like rarefied gas, liquid, or a vacuum.
Few examples of convection current are a beam of electrons in a vacuum tube, television tube, and a moving charged belt.
Therefore, from the above explanation, electric current flowing in a copper wire is not an example of convection current. Hence, option (d) is correct and options (a), (b), and (c) are incorrect.
Conclusion:
Thus, the correct option from the given choices is (d) Electric current flowing in a copper wire.
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