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QJEEM21Phf747: JEE Main 2021 Physics - Class 12 JEEM21Phf747 Solution: In the given figure, the emf of the cell is 2.2 V and if…

In the given figure, the emf of the cell is 2.2 V and if internal resistance is 0.6Ω. Calculate the power dissipated in the whole circuit :
JEE Main 2021 (Online) 26th August Morning Shift Physics - Current Electricity Question 173 English

Multiple Choice Options

  • A 1.32 W
  • B 0.65 W
  • C 2.2 W
  • D 4.4 W

Step-by-Step Verified Solution

JEE Main 2021 (Online) 26th August Morning Shift Physics - Current Electricity Question 173 English Explanation 1
JEE Main 2021 (Online) 26th August Morning Shift Physics - Current Electricity Question 173 English Explanation 2
1Req=14+18+112+16=6+3+2+424=1524

Req=2415=1.6⇒RT=1.6+0.6=2.2Ω

P=V2RT=(2.2)22.2=2.2W

Option (c)

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