MCQ
Mass m2 is hanged using a uniform string whose other end is attached to a mass m1 . A string connects m1 to ground as shown in figure. Tension in this string is


- AZero
- B$m_1 g$
- C$m _2 g$
- ✓$\left(m_2-m_1\right) g$

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(Given the gas constant $R = 8.3J/mol{\rm{ - }}K$)


The magnitude of current through ${R}=2 \,\Omega$ resistor at ${t}=5\, {s}$ is $....\,{mA}$.