Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
How many meters of a thin wire required to manufacture a solenoid of length lo and inductance L, if the solenoid cross sectional diameter is considerably less than its length?
07
Sep
How many meters of a thin wire required to manufacture a solenoid of length lo and inductance L, if the solenoid cross sectional diameter is considerably less than its length? How many meters of a thin wire required to manufacture a solenoid of length lo and inductance L if the solenoid cross sectional diameter is [...]
Calculate the velocity of sound in air at NTP. The density of air at NTP is 1.29 g/L. Assume air to be diatomic with gama = 1.4. Also calculate the velocity of sound in air at 27 C
07
Sep
Calculate the velocity of sound in air at NTP. The density of air at NTP is 1.29 g/L. Assume air to be diatomic with gama = 1.4. Also calculate the velocity of sound in air at 27 C Calculate the velocity of sound in air at NTP. The density of air at NTP is 1.29 [...]
Determine the change in volume of 6 liters of alcohol if the pressure is decreased from 200 cm of Hg to 75 cm. (velocity of sound in a alcohol is 1280 m/s, density of alcohol = 0.81 g/cc, density of Hg = 13.6 gm/cc
07
Sep
Determine the change in volume of 6 liters of alcohol if the pressure is decreased from 200 cm of Hg to 75 cm. (velocity of sound in a alcohol is 1280 m/s, density of alcohol = 0.81 g/cc, density of Hg = 13.6 gm/cc density of alcohol = 0.81 g/cc density of Hg = 13.6 [...]
A wire frame of area 4.0 × 10^−4 m^2 and resistance 20 Ω is suspended freely from a 0.40 m long thread. There is a uniform magnetic field of 0.8 T and the plane of wire-frame is made to oscillate under gravity by displacing it through 2×10^−2 m from its initial position along the direction of magnetic field. The plane of the frame is always along the direction of thread and does not rotate about it . What is the induced EMF in wire-frame us a function of time ? Also find the maximum current in the frame.
07
Sep
A wire frame of area 4.0 × 10^−4 m^2 and resistance 20 Ω is suspended freely from a 0.40 m long thread. There is a uniform magnetic field of 0.8 T and the plane of wire-frame is made to oscillate under gravity by displacing it through 2×10^−2 m from its initial position along the direction [...]
The equation of a sound wave in all is given by delta P = (0.02) sin ((3000)t – (9.0)x), where all variables are in SI units. (a) Find the frequency, wavelength and the speed of sound wave in air. (b) If the equilibrium pressure of air is
07
Sep
The equation of a sound wave in all is given by delta P = (0.02) sin ((3000)t – (9.0)x), where all variables are in SI units. (a) Find the frequency, wavelength and the speed of sound wave in air. (b) If the equilibrium pressure of air is The equation of a sound wave in all [...]
A uniform string of length l is fixed at both ends such that tension T is produced in it. The string is excited to vibrate with maximum displacement amplitude a0. Calculate maximum kinetic energy of the string for its:
07
Sep
A uniform string of length l is fixed at both ends such that tension T is produced in it. The string is excited to vibrate with maximum displacement amplitude a0. Calculate maximum kinetic energy of the string for its: A stone hangs in air from one end of a wire which is stretched over a [...]
A long straight wire carries a current I 0. At distances a and b (a+b) from it, there are two other wires each having resistance lamda per unit, parallel to the former one, which are interconnected by a resistance R (Fig). A connector slides without friction along the wires with a constant velocity v. Assuming the resistances of the wires, the conductor, the sliding contacts, and the self-inductance of the frame to be negligable, calculate force F required to maintain velocity of the rod constant as function of time t .
07
Sep
A long straight wire carries a current I 0. At distances a and b (a+b) from it, there are two other wires each having resistance lamda per unit, parallel to the former one, which are interconnected by a resistance R (Fig). A connector slides without friction along the wires with a constant velocity v. Assuming [...]
A stone hangs in air from one end of a wire which is stretched over a sonometer. The wire is in unison with a certain tuning fork when the bridges of the sonometer are 45 cm apart. Now the stone hangs
07
Sep
A stone hangs in air from one end of a wire which is stretched over a sonometer. The wire is in unison with a certain tuning fork when the bridges of the sonometer are 45 cm apart. Now the stone hangs A stone hangs in air from one end of a wire which is stretched [...]
Two long parallel horizontal rails a, a distance d aprt and each having a risistance λ per unit length are joing at one end by a resistance R. A perfectly conduction rod MN of mass m is free to slide along the rails without friction (see figure). There is a uniform magnetic field of induction B normal to the plane of the paper and directed into the paper. A variable force F is applied to the rod MN such that, as the rod moves a constant current flows through R. (i) Find the velocity of the rod and the applied force F as function of the distance x of the rod from R. (ii) What fraction of the work done per second by F is converted into heat?
07
Sep
Two long parallel horizontal rails a, a distance d aprt and each having a risistance λ per unit length are joing at one end by a resistance R. A perfectly conduction rod MN of mass m is free to slide along the rails without friction (see figure). There is a uniform magnetic field of induction [...]
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A line charge with linear charge density λ is wound around an insulating disc of mass M and radius R ,
A thermocol vessel contains 0.5 kg of distilled water at 30∘ C. A metal coil of area 5×10^−3 m^2 ,
number of turns 100 ,
of radius a ,
pointing up. Now the magnetic field is switched off ,
so that it is free to rotate. In the central region ,
there is a uniform magnetic field B0 ,
Two long parallel horizontal rails a ,
which causes the disc to rotate. Find the angular speed with which the disc starts rotating. ,
which is then suspended horizontally as shown in Fig. 3.90 ,
Two infinite long straight parallel wires M and N each carry equal currents but in opposite directions are seperated by r0 = 5 m . A square loop L of side a = r0 = 5 m lies in the plane of M and N at a distance of d = r0 = 5 m from the nearest wire. calculate the EMF induced in ther loop L if the currents in M and N are increasing at the rate of 10 ^3 A/s. Also indicate the direction of current in the loop.
07
Sep
Two infinite long straight parallel wires M and N each carry equal currents but in opposite directions are seperated by r0 = 5 m . A square loop L of side a = r0 = 5 m lies in the plane of M and N at a distance of d = r0 = 5 m [...]
Tags:
A line charge with linear charge density λ is wound around an insulating disc of mass M and radius R ,
A thermocol vessel contains 0.5 kg of distilled water at 30∘ C. A metal coil of area 5×10^−3 m^2 ,
number of turns 100 ,
of radius a ,
pointing up. Now the magnetic field is switched off ,
so that it is free to rotate. In the central region ,
there is a uniform magnetic field B0 ,
which causes the disc to rotate. Find the angular speed with which the disc starts rotating. ,
which is then suspended horizontally as shown in Fig. 3.90 ,