If four different resistors are used to pass electric current for different time durations, then which of the following will produce the largest heating effect in joules?
Correct answer: D. When 3 A current is passed through a 1-ohm resistor for 1 sec
- A. When 1 A current is passed through a 3 ohm resistor for 2 sec
- B. When 1 A current is passed through a 2 ohm resistor for 3 sec
- C. When 2 A current is passed through a 1-ohm resistor for 2 sec
- D. When 3 A current is passed through a 1-ohm resistor for 1 sec
Explanation
To determine the largest heating effect in joules, we need to calculate the heat produced in each scenario using the formula: Heat (H) = I^2 * R * t, where I is the current in amperes, R is the resistance in ohms, and t is the time in seconds.d. When 3 amp current is passed through 1-ohm resistor for 1 sec.H = (3^2) * 1 * 1 = 9 joulesComparing the results, we can see that option D produces the largest heating effect with 9 joules.
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