Five identical conducting plates
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 [...]