A wire of resistance 10Ω is connected in a cell of 5V for 10 minutes. How
much heat is produced
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Explanation:
- Resistance (R) = 10 ohm
- Potential Diff (V) = 5 V
- Time (t) = 10 mins = 600 sec
- Heat (H) = ?
H = V²/R × t
= (5)²/ 10 × 600
= 25/10 × 600
= 2.5 × 600
= 1500 Joule
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