Question
Download Solution PDFA current of 2 A flows through a 24 V car head light bulb for 5 mins. How much energy transfer occurs during this time?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- Whenever a current is flowing in the resistance then heat is produced in it.
- The phenomenon of producing heat by the electric current is called as the heating effect of electric current.
- The amount of heat produced (H) in joules = I2Rt
- But we know that, V = IR
- Therefore, The amount of heat produced (H) in joules = I2Rt = VIt
Where I = current, R = resistance, t = the time taken, and V = electric potential
EXPLANATION:
Given - I = 2 A, V = 24 V and t = 5 min = 5 × 60 sec = 300 sec
- The amount of heat produced (H) in joules is
⇒ H = VIt
⇒ H = 24 × 2 × 300 = 14400 J
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