Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A body cools from 60∘C to 50∘C in 10 minutes . If the room temperature is 25∘C and assuming Newton’s law of cooling to hold good, the temperature of the body at the end of the next 10 minutes will be
02
Sep
A body cools from 60∘C to 50∘C in 10 minutes . If the room temperature is 25∘C and assuming Newton’s law of cooling to hold good, the temperature of the body at the end of the next 10 minutes will be A body cools from 60∘C to 50∘C in 10 minutes . If the room [...]
A body cools down from 60%=C to 55C in 30 s. Using newton’s law of cooling calculate the time taken by same body to cool down from 55C to 50C. Assume that the temperature of surrounding is 45C.
02
Sep
A body cools down from 60%=C to 55C in 30 s. Using newton’s law of cooling calculate the time taken by same body to cool down from 55C to 50C. Assume that the temperature of surrounding is 45C. A body cools down from 60%=C to 55C in 30 s. Using newton's law of cooling calculate [...]
Two identical spheres A and B are suspended in an air chamber which is maintained at a temperature of 50C. Find the ratio of the heat lost per second from the surface of the spheres if a. A and B are at temperatures 60C and 55C, respectively. b. A and B are at temperatures 250C and 200C, respectively.
02
Sep
Two identical spheres A and B are suspended in an air chamber which is maintained at a temperature of 50C. Find the ratio of the heat lost per second from the surface of the spheres if a. A and B are at temperatures 60C and 55C, respectively. b. A and B are at temperatures 250C [...]
The figure shows two identical parallel plate capacitors connected to a battery with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant (or relative permittivity) 3.Find the ratio of the total electrostatic energy stored in both capacitors before and after the introduction of the dielectric.
01
Sep
The figure shows two identical parallel plate capacitors connected to a battery with the switch S closed. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant (or relative permittivity) 3.Find the ratio of the total electrostatic energy stored in both capacitors [...]
Figure shows a parallel plate capacitor with its plate area A=lb and plate separation d at left end of the plates. Upper plate of capacitor is slightly tilted by a very small angle 8 as shown. Find the capacitance of this capacitor.
01
Sep
Figure shows a parallel plate capacitor with its plate area A=lb and plate separation d at left end of the plates. Upper plate of capacitor is slightly tilted by a very small angle 8 as shown. Find the capacitance of this capacitor. In the given circuit diagram initially the switch S is opened. find heat [...]
let us consider a parallel plate of capacitor with plates of width b and length l . the distance between the plates is d. find the force acting on the smooth dielectric slab i) when the battery is disconnected after charging the capacitor . ii) when the battery remains connected.
01
Sep
let us consider a parallel plate of capacitor with plates of width b and length l . the distance between the plates is d. find the force acting on the smooth dielectric slab i) when the battery is disconnected after charging the capacitor . ii) when the battery remains connected. In the given circuit diagram [...]
Four identical metal plates are located in air at equal distances d from one another. The area of each plate is equal to A. Find the capacitance of the system between points A and B if the plates are interconnected as shown (a) in Fig. (a) (b) in Fig. (b).
01
Sep
Four identical metal plates are located in air at equal distances d from one another. The area of each plate is equal to A. Find the capacitance of the system between points A and B if the plates are interconnected as shown (a) in Fig. (a) (b) in Fig. (b). In the given circuit diagram [...]
Each of the three plates shown in figure has an area of 200 cm^2 on one side and the gap between the adjacent plates is 0.2 mm. The emf of the battery is 20V. Find the distribution of charge on various surfaces of the plates. What is the equivalent capacitance of the system between the terminal points?
01
Sep
Each of the three plates shown in figure has an area of 200 cm^2 on one side and the gap between the adjacent plates is 0.2 mm. The emf of the battery is 20V. Find the distribution of charge on various surfaces of the plates. What is the equivalent capacitance of the system between the [...]
In the given circuit diagram initially the switch S is opened. find heat dissipated in the circuit after switch S is closed. It is given C = 2 muF.
01
Sep
In the given circuit diagram initially the switch S is opened. find heat dissipated in the circuit after switch S is closed. It is given C = 2 muF. In the given circuit diagram initially the switch S is opened. find heat dissipated in the circuit after switch S is closed. It is given C [...]
find the potential difference Va -Vb between points A and B of the circuit shown in fig.
01
Sep
find the potential difference Va -Vb between points A and B of the circuit shown in fig. find the potential difference Va -Vb between points A and B of the circuit shown in fig. September 1, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,