CBSE Class 10 Answered
V^2/R.t or I^2Rt ?
Asked by patric_9432 | 02 Feb, 2010, 07:30: PM
Expert Answer
Dear student,
As current flows through a resistor, the resistor heats up. The heat in joules is given by:
H = I2 Rt = Pt
where t is the time in seconds. In other words, a resistor heats up more when there is a high current running through a strong resistor over a long stretch of time.
Substituting V/R in I, we get the other equation. Both equations are one and the same.
Hope this helps.
Regards
Topperlearning.com
Answered by | 02 Feb, 2010, 08:07: PM
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