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Current Electricity · 2021 · 1 Sep · Shift 2

3 Physics questions from this JEE Main paper
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Current Electricity · 2021 · 1 Sep · Shift 2

3 Physics questions from this JEE Main paper

  1. Q53.Due to cold weather a 1 m water pipe of cross-sectional area 1 cm2 is filled with ice at − 10 ∘ C. Resistive heating is used to melt the ice. Current of 0.5A is passed through 4 k Ω resistance. Assuming that all the heat…
    Physics · Current Electricity · MCQ
  2. Q55.Two resistors R1 = (4 ± 0.8) Ω and R2 = (4 ± 0.4) Ω are connected in parallel. The equivalent resistance of their parallel combination will be :
    Physics · Current Electricity · MCQ
  3. Q71.A uniform heating wire of resistance 36 Ω is connected across a potential difference of 240 V. The wire is then cut into half and potential difference of 240V is applied across each half separately. The ratio of power dissipation in…
    Physics · Current Electricity · Numerical