AIPMT 2011 Solved Papers
AIPMT Examination
AIPMT Solved / Unsolved Papers
AIPMT Important Links
Physics 2011
Q. 26. The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be
Sol.
Answer : (2)
Q.27. In an ac circuit an alternating voltage e = 200 √2 sin100t volts is connected to capacitor of capacity 1 μF.The r.m.s. value of the current in the circuit is
(1) 20 mA (2) 10 mA
(3) 100 mA (4) 200 mA
Sol.
Answer : (1)
Q. 28. An ac voltage is applied to a resistance R and inductor L in series. If R and the inductive reactance are both equal to 3 Ω, the phase difference between the applied voltage and the current in the circuit is
(1) Zero (2) π/6
(3) π/4 (4) π/2
Sol.
Answer : (3)
Q. 29. When 1 kg of ice at 0°C melts to water at 0° C, the resulting change in its entropy, taking latent heat of ice to be 80 cal/°C is
(1) 293 cal/K (2) 273 cal/K
(3) 8 × 104 cal/K (4) 80 cal/K
Sol:
Answer : (1)
Q. 30. During an isothermal expansion, a confined ideal gas does –150 J of work against its surrounding. This implies that
(1) 150 J of heat has been added to the gas
(2) 150 J of heat has been removed from the gas
(3) 300 J of heat has been added to the gas
(4) No heat is transferred because the process is isothermal
Sol:
Answer : (2)