Question 21
An electric drill rated 400W is used to drill a hole in copper of mass 400g in 20s. Calculate the rise in temperature if all the heat produced is absorbed by the copper. [specific heat capacity of copper = 400Jkg-1K-1]
Objective
Question details
- Exam body
- WAEC
- Subject
- Physics
- Year
- 2010
- Question no.
- #21
- Type
- Objective
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