Questions
An ideal gas is contained in a thermally insulated and rigid container. The gas is heated through a resistance of by passing a current of 1 amp. The change in the internal energy of the gas after S min. will be
detailed solution
Correct option is C
Here ∆W=0(volume is constant)∴ ΔU=ΔQ=I2RΔt=(1)2×(1000)×(5×60)=30kJTalk to our academic expert!
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A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
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