3%
Two capacitors A and B with capacities 3μF and 2μF are charged to a potential difference of 100V and 180V, respectively. The plates of the capacitors are connected as show in figure with one wire of each capacitor free. The upper plate of A is positive and that of B is negastive. An uncharged 2μF capcitor C with lead wires falls on the free ends to complete the circuit. Calculate a. the final charge on the three capacitors. b. the amount of electrostatic energy stored in the system before and after completion of the circuit.
02
Sep
Two capacitors A and B with capacities 3μF and 2μF are charged to a potential difference of 100V and 180V, respectively. The plates of the capacitors are connected as show in figure with one wire of each capacitor free. The upper plate of A is positive and that of B is negastive. An uncharged 2μF [...]
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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 ,
Five identical conducting plates ,
the temperature of the body at the end of the next 10 minutes will be ,
Two capacitors A and B with capacities 3μF and 2μF are charged to a potential difference of 100V and 180V ,
Two parallel plate capacitors A and B have the same separation d = 8.85×10^−4 m between the plates. The plate area of A and B are 0.04 m^2 and 0.02 m^2 respectively. A slab of dielectric constant (relative permittivity) K = 9 has dimensions such that it can exactly fill the space between the plates of capacitor B. (i) The dielectric slab is placed inside. A as shown in figure (a). A is then charged to a potential difference of 110V. Calculate the capacitance of A and the energy stored in it. The battery is disconnected and then the dielectric slab is moved from A. Find the work done by the external agency in removing the slab from A. (iii) The same dielectric slab is now placed inside B, filling it completely, The two capacitors A and B are then connected as shown in figure(c). Calculate the energy stored in the system.
02
Sep
Two parallel plate capacitors A and B have the same separation d = 8.85×10^−4 m between the plates. The plate area of A and B are 0.04 m^2 and 0.02 m^2 respectively. A slab of dielectric constant (relative permittivity) K = 9 has dimensions such that it can exactly fill the space between the plates [...]
Five identical conducting plates, 1,2,3,4 and 5 are fixed parallel pltes equidistant from each other (see figure). A conductor connects plates 2 and 5 while another conductor joins 1 and 3. The junction of 1 and 3 and the plate 4 are connected to a source of constant emf V0. Find (a) the effective capacity of the system between the terminals of source. (b) the charges on the plates 3 and 5. Given, d= distance between any two successive plates and A= area of either face of each plate.
02
Sep
Five identical conducting plates, 1,2,3,4 and 5 are fixed parallel pltes equidistant from each other (see figure). A conductor connects plates 2 and 5 while another conductor joins 1 and 3. The junction of 1 and 3 and the plate 4 are connected to a source of constant emf V0. Find (a) the effective capacity [...]
Uniform electric field of magnitude 100V/m in space is directed along the line y=3+x. Find the potential difference between point A(3,1) & B(1,3)
31
Aug
Uniform electric field of magnitude 100V/m in space is directed along the line y=3+x. Find the potential difference between point A(3,1) & B(1,3) 1) & B(1 3% Uniform electric field of magnitude 100V/m in space is directed along the line y=3+x. Find the potential difference between point A(3 August 31, 2020 Category: Uncategorised (JEE Advanced [...]
Three charges q1 = 1muC, q2 = -2 muC, and q3 = -1 muC are placed at A( 0, 0, 0 ), B(-1, 2, 3, ) and C( 2, -1, -1 ). find the potiential of the system of three charges at p(1, -2, -1).
31
Aug
Three charges q1 = 1muC, q2 = -2 muC, and q3 = -1 muC are placed at A( 0, 0, 0 ), B(-1, 2, 3, ) and C( 2, -1, -1 ). find the potiential of the system of three charges at p(1, -2, -1). -1 ). find the potiential of the system of three [...]
Two identical metal plates each having surface area A, having charges q1 and q2, are placed facing each other at a separation d. Find the charge appearing on surface (1) , (2), (3), and (4). Assume the size of the plate is much larger than the separation between the plates.
31
Aug
Two identical metal plates each having surface area A, having charges q1 and q2, are placed facing each other at a separation d. Find the charge appearing on surface (1) , (2), (3), and (4). Assume the size of the plate is much larger than the separation between the plates. 2 3% and (4). Assume [...]
The moment of the force, vector F = 4i cap + 5j cap – 6k cap at (2, 0, – 3), about the point (2, –2, –2), is given by:-
29
Aug
The moment of the force, vector F = 4i cap + 5j cap – 6k cap at (2, 0, – 3), about the point (2, –2, –2), is given by:- 2 3% about the point (2 is given by The moment of the force vector F = 4i cap + 5j cap - 6k cap [...]
Four cannon balls, (1),(2),(3), and (4) are fired from level ground. Cannon ball (1) is fired at an angle of 60 degree above the horizontal and follows the path shown in
28
Aug
Four cannon balls, (1),(2),(3), and (4) are fired from level ground. Cannon ball (1) is fired at an angle of 60 degree above the horizontal and follows the path shown in 1 2 3% and (4) are fired from level ground. Cannon ball (1) is fired at an angle of 60^@ above the horizontal and [...]
A physical quantity x is calculated from the relation x = ( a^(2) b^(3))/(c sqrt( d)). If the percentage error in a, b , c , and d are 2% , 1% , 3%, and 4%, respectively , what is the percentage error in x?
25
Aug
A physical quantity x is calculated from the relation x = ( a^(2) b^(3))/(c sqrt( d)). If the percentage error in a, b , c , and d are 2% , 1% , 3%, and 4%, respectively , what is the percentage error in x? 1 3% A physical quantity x is calculated from the [...]