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An electric current of 3Aflowing through an electric heating elements of resistance 20 ...

An electric current of 3Aflowing through an electric heating elements of resistance 20 embedded in 1,000g of an oil raises the temperature of the oil by 10oC in 10 seconds then the specific heat capacity of the oil is
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 1.8Jg-1oC
  • B 0.6Jg-1oC
  • C 0.18Jg-1oC
  • D 18Jg-1oC
  • E 0.06Jg-1oC
Correct Answer: Option C
Explanation:
Heat energy = Electrical energy
mc\(\Omega\) = I2RTt
1000 x c x 10 = 3 x 3 x 20 x 10
0.18Jg-1oC

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