Question 38
A 10- Ω coil takes 21 s to melt 10g of ice at 0oC. Assuming no heat losses, determine the current in the coil. (Specific latent heat of fusion of ice = 336 Jg-1)
Objective
Question details
- Exam body
- WAEC
- Subject
- Physics
- Year
- 1999
- Question no.
- #38
- Type
- Objective
More from this paper
- Q34A resistance wire of length 2 m and of uniform cross-sectional area 5.0 x 10 -7…
- Q35Magnetic flux density is defined as the
- Q36The voltage and current in the primary of a transformer are 200V and…
- Q40Bohr’s atomic model proves most successful for the explanation of the. I…
- Q41The diagram above illustrates the energy transitions of five electrons of an…
- Q42Which of the transitions will produce the emission of highest frequency?