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Find temperature as a function of radius r in case of spherical shell. Inner and outer surfaces’ temperatures are fixed at theta 1 and theta 2 respectively.
02
Sep
Find temperature as a function of radius r in case of spherical shell. Inner and outer surfaces’ temperatures are fixed at theta 1 and theta 2 respectively. Find temperature as a function of radius r in case of spherical shell. Inner and outer surfaces' temperatures are fixed at theta 1 and theta 2 respectively. September [...]
In the circuit shown in , capacitor A has capacitance C1 = 2μF when filled with a dielectric slab (k=2). Capacitors B and C are air capacitors and have capacitances C2 = 3μF and C3 = 6μF, respectively.A is charged by closing the switch S1 alone. i. Calculate the energy supplied by the battery during the process of charging. Switch S1is now opened and is closed. ii. Calculate the charge on B and the energy stored in the system when an electrical equilinrium is atained. Now switch S2 is also opened, and the slab of A is removed. Another dielectric slab of K=2, which can just fill the space in B, is inserted into it and then switch S2 alone is closed. iii. Calculate by how many time the electric field in B is increased. Calculate also the loss of energy during the redistribution of charge.
02
Sep
In the circuit shown in , capacitor A has capacitance C1 = 2μF when filled with a dielectric slab (k=2). Capacitors B and C are air capacitors and have capacitances C2 = 3μF and C3 = 6μF, respectively.A is charged by closing the switch S1 alone. i. Calculate the energy supplied by the battery during [...]
A cylindrical block of length 0.4 m and area of cross-section 0.04m^2 is placed coaxially on a thin metal disc of mass 0.4 kg and of the same cross – section. The upper face of the cylinder is maintained at a constant temperature of 400 K and the initial temperature of the disc is 300K. if the thermal conductivity of the material of the cylinder is 10watt/mK and the specific heat of the material of the disc is
02
Sep
A cylindrical block of length 0.4 m and area of cross-section 0.04m^2 is placed coaxially on a thin metal disc of mass 0.4 kg and of the same cross – section. The upper face of the cylinder is maintained at a constant temperature of 400 K and the initial temperature of the disc is 300K. [...]
The earth receives solar energy at the rate of 2 cal−cm^−2 per minute. Assuming the radiation to be black body in character, estimate the surface temperature of the sun. Stefan’s constant
02
Sep
The earth receives solar energy at the rate of 2 cal−cm^−2 per minute. Assuming the radiation to be black body in character, estimate the surface temperature of the sun. Stefan’s constant estimate the surface temperature of the sun. Stefan's constant The earth receives solar energy at the rate of 2 cal−cm^−2 per minute. Assuming the [...]
In, all the capacitors are in steady state initially. i. What is the charge flowing through the switch when it is closed? ii. What is the charge flowing section AB? iii. What is the work done by the battery? iv. What is the heat produced when (S) is closed?
02
Sep
In, all the capacitors are in steady state initially. i. What is the charge flowing through the switch when it is closed? ii. What is the charge flowing section AB? iii. What is the work done by the battery? iv. What is the heat produced when (S) is closed? AB has a spacing of 5 [...]
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AB has a spacing of 5 mm and a capacitance of 20pF ,
find the capacitance between the terminals A and B if Er = 2. ,
In ,
Two parallel plate capacitors differ only in the spacing between their (very thin) plates ,
while B and D each carry −1nC ,
while CD has a spacing of 2 mm . Plates A and C carry charges of +1nC ,
Two parallel plate capacitors differ only in the spacing between their (very thin) plates , AB has a spacing of 5 mm and a capacitance of 20pF, while CD has a spacing of 2 mm . Plates A and C carry charges of +1nC, while B and D each carry −1nC, What are the potential differences VAB and VCD after the capacitor CD is slid centrally between and parallel of the plates of AB without touching them ? Would it make any difference if CD was not centrally paced between A and B ?
02
Sep
Two parallel plate capacitors differ only in the spacing between their (very thin) plates , AB has a spacing of 5 mm and a capacitance of 20pF, while CD has a spacing of 2 mm . Plates A and C carry charges of +1nC, while B and D each carry −1nC, What are the potential [...]
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AB has a spacing of 5 mm and a capacitance of 20pF ,
find the capacitance between the terminals A and B if Er = 2. ,
Two parallel plate capacitors differ only in the spacing between their (very thin) plates ,
while B and D each carry −1nC ,
while CD has a spacing of 2 mm . Plates A and C carry charges of +1nC ,
One end of a rod of length 20cm is inserted in a furnace at 800K The sides of the rod are coverd with an insulating meterial and the other end emits radiation like a black boy The temperature of this end is 750K in the steady state The temperature of the surrounding air is 300K Assuming radiation to be the only important mode of energy transfer between the surrounding and the open end of the rod, find the thermal conductivity of the rod Stefan’s
02
Sep
One end of a rod of length 20cm is inserted in a furnace at 800K The sides of the rod are coverd with an insulating meterial and the other end emits radiation like a black boy The temperature of this end is 750K in the steady state The temperature of the surrounding air is 300K [...]
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The intensity of solar radiation just outside the earth's atmosphere is measured to be 1.4kW/m^2. If the radius of the sun 7×10^8m ,
then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body ,
while the earth-sun distance is 150×10^6km ,
The intensity of solar radiation just outside the earth’s atmosphere is measured to be 1.4kW/m^2. If the radius of the sun 7×10^8m, while the earth-sun distance is 150×10^6km, then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body,
02
Sep
The intensity of solar radiation just outside the earth’s atmosphere is measured to be 1.4kW/m^2. If the radius of the sun 7×10^8m, while the earth-sun distance is 150×10^6km, then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be [...]
Tags:
The intensity of solar radiation just outside the earth's atmosphere is measured to be 1.4kW/m^2. If the radius of the sun 7×10^8m ,
then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body ,
while the earth-sun distance is 150×10^6km ,
find the capacitance between the terminals A and B if Er = 2.
02
Sep
find the capacitance between the terminals A and B if Er = 2. find the capacitance between the terminals A and B if Er = 2. September 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In the circuit shown , the emf of each battery is 60V and C1 = 2μF and C2 = 3μF. Find the charges that will flow through the sections 1,2 and 3 after the Key is closed.
02
Sep
In the circuit shown , the emf of each battery is 60V and C1 = 2μF and C2 = 3μF. Find the charges that will flow through the sections 1,2 and 3 after the Key is closed. 2 and 3 after the Key is closed. In the circuit shown the emf of each battery is [...]