Question 17:
A heating coil has a resistance of 200 Ω. At what rate will heat be produced in it when a current of 2.5 A flows through it ?
Lakhmir Singh Physics Class 10
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Answer:
ज़ब्स्ण्डजसज्जजशस्जक्सन्सन्समक्सन्सनज़्जष्कद
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Dear Student,
◆ Answer -
dH/dt = 1250 J/s
● Explaination -
# Given -
R = 200 ohm
I = 2.5 A
# Solution -
Rate of production of heat in a coil is given by -
dH/dt = (I²Rt)/t
dH/dt = I²R
dH/dt = 2.5² × 200
dH/dt = 6.25 × 200
dH/dt = 1250 J/s
Therefore, heat will be produced in the coil at the rate of 1250 J/s.
Thanks dear...
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