When the same current passes for the same time through a thick and thin wire:
Correct answer: B. more heat is produced in the thin wire
- A. more heat is produced in the thick wire
- B. more heat is produced in the thin wire
- C. no heat is produced in the wire
- D. Equal heat in thick and thin wire
Explanation
According to the formula for electrical power (P = I²R), where R is the resistance, the thin wire will have higher resistance, resulting in more heat produced as compared to the thick wire.
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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