1 2ER 2x 4TR 1 2 C 3 5 C 3 14 In the circuit the batteries

Last updated: 6/13/2023

1 2ER 2x 4TR 1 2 C 3 5 C 3 14 In the circuit the batteries have emf E E 1V E 2 5 V and the resistance R 100 R 20 92 capacitance C 10 F The charge on the left plate of the capacitor C is R EHH E A 2 2 R www R 2V 2 4 C 4 12 C 15 A capacitor of capacitance C is charged by a battery of emfe If polarity of battery is reversed then find the heat dissipated in the circuit 1 C2 2 20 3 30 4 402 16 In the circuit shown the galvanometer shows current The value of resistance Ris 2 2TE R K mm m 12 V R ww 592 1 19 2 292 4 992 3 492 17 A block of mass m is attached to two unstretched springs of spring constants K and K as shown in figure The block is displaced towards right through a distance x and is released Find the speed of the block as it passes through the mean position shown K K 4m K mm laka Med IT JEE FO 4 18 A uniform chain of length and mass moverhangs a smooth table with its two third part lying on the table Find the kinetic energy of the chain as it completely slips off the table 1 mgl 2 mgl 2 3 mgl 4 mgl 19 A heavy stone is thrown from a cliff of height h with a speed v The stone will hit the ground with maximum speed if it is thrown 1 Vertically downward 2 Vertically upward 8 K K 2m 3 Horizontally 4 The speed does not depend on the initial direction K K m 20 A simple pendulum is oscillating with an angular amplitude 90 For what value of a the acceleration of bob will be directed horizontally UJ 200 100 3 60 4 cos 1 3 21 The potential energy U versus position x curve of spring mass system executing SHM is shown If spring constant K 2 x 10 N m and mass of the object m 2 kg then which of the following is incorrect 2 45 x m 1 K 200 J 2 Amplitude 10 cm 3 Maximum velocity 10 m s 4 Maximum acceleration 10 m s