Answer is also mentioned in picture .Kindly check the answer before submitting the solution. Wrong solutions have been posted for this question multiple times in past. Kindly do not refer or submit the same. Anonymous tutors kindly excuse 38. It is desired to keep current in discharge process of a capacitor constant.2 Lo= I CItn)= For the purpose, following three schemes (a), (b) and (c) are suggested.(a) In this scheme, after closing the switch you have to vary resistanceof the rheostat. The initial charge on the capacitance Co is qo and44.range of values of resistance of the rheostat is zero to Ro. Find thelaw R(t) according to which resistance of the rheostat should bechanged with time. R(4) = Ro(1-t/Rco)(b) In this scheme, a variable disk capacitor is connected across a fixedresistance Ro. After closing the switch, you have to vary thecapacitance by rotating one of its plates. The initial value ofcapacitance is Co and charge on it is qo. Find the law C(t) accordingto which capacitance should be changed with time and correspondingangular velocity @(t) of one plate relative to the other.(c) In this scheme, a variable capacitor is used in which one plate can beshifted towards or away from the other fixed plate without changingoverlap area. After closing the switch, you have to move the movableplate. The initial value of capacitance is Co and charge on it is qo.Find the law C(t) according to which capacitance and the distancex(t) between the plates should be changed with time.Co%3Dgo.CoRoOverlapRotatingCoFixed PlateRo

Given : To keep the current in the discharge process constant.

I(I+n)= For the purpose, following three schemes (a), (b) and (c) are suggested. n (a) In this scheme, after closing the switch you have to vary resistance of the rheostat. The initial charge on the capacitance Co is qo and range of values of resistance of the rheostat is zero to Ro. Find the law R(t) according to which resistance of the rheostat should be changed with time. R(H) = Ro(1-/Rco) (b) In this scheme, a variable disk capacitor is connected across a fixed resistance R. After closing the switch, you have to vary the capacitance by rotating one of its plates. The initial value of capacitance is Co and charge on it is qo. Find the law C(t) according to which capacitance should be changed with time and corresponding angular velocity o(t) of one plate relative to the other. (c) In this scheme, a variable capacitor is used in which one plate can be shifted towards or away from the other fixed plate without changing overlap area. After closing the switch, you have to move the movable plate. The initial value of capacitance is Co and charge on it is qo- Find the law C(t) according to which capacitance and the distance x(t) between the plates should be changed with time. Co Ro Overlap Rotating ゆっ-。 Fixed Plate

I(I+n)= For the purpose, following three schemes (a), (b) and (c) are suggested. n (a) In this scheme, after closing the switch you have to vary resistance of the rheostat. The initial charge on the capacitance Co is qo and range of values of resistance of the rheostat is zero to Ro. Find the law R(t) according to which resistance of the rheostat should be changed with time. R(H) = Ro(1-/Rco) (b) In this scheme, a variable disk capacitor is connected across a fixed resistance R. After closing the switch, you have to vary the capacitance by rotating one of its plates. The initial value of capacitance is Co and charge on it is qo. Find the law C(t) according to which capacitance should be changed with time and corresponding angular velocity o(t) of one plate relative to the other. (c) In this scheme, a variable capacitor is used in which one plate can be shifted towards or away from the other fixed plate without changing overlap area. After closing the switch, you have to move the movable plate. The initial value of capacitance is Co and charge on it is qo- Find the law C(t) according to which capacitance and the distance x(t) between the plates should be changed with time. Co Ro Overlap Rotating ゆっ-。 Fixed Plate

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 94CP: Consider the circuit below, (a) What is the initial current through resistor R2? when the switch is...

See similar textbooks

Similar questions

In a hydroelectric installation, a turbine delivers 1500 hp to a generator, which in turn transfers 80.0% of the mechanical energy out by electrical transmission. Under these conditions, what current does the generator deliver at a terminal potential difference of 2000 V?
If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an EC discharge through a flash tube can limit blurring. Assuming 1.00 mm of motion during one EC constant is acceptable, and given that the flash is driven by a 600F capacitor, what is the resistance in the flash tube?
In this problem, you will verify statements made at the end of the power losses for Example 20.10. (a) What current is needed to transmit 100 MW of power at a voltage of 25.0 kV? (b) Find the power loss in a 1.00 transmission line. (c) What percent loss does this represent?
Verify that the units of a volt-ampere are watts, as implied by the equation P =IV.
An electronic apparatus may have large capacitors at high voltage in the power supply section, presenting a shock hazard even when the apparatus is switched off. A “bleeder resistor" is therefore placed across such a capacitor, as shown schematically in Figure 21.50, to bleed the charge from it after the apparatus is off. Why must the bleeder resistance be much greater than the effective resistance of the rest of the circuit? How does this affect the time constant for discharging the capacitor?
Does the resistance of an object depend on the path current takes through it? Consider, for example, a rectangular bar-is its resistance the same along its length as across its width? (See Figure 20.37.)
The human body can exhibit a wide range of resistances to current depending on the path of the current, contact area, and sweatiness of the skin. Suppose the resistance across the chest from the left hand to the right hand is 1.0 106 . (a) How much voltage is required to cause possible heart fibrillation in a man, which corresponds to 500 mA of direct current? (b) Why should rubber-soled shoes and rubber gloves be worn when working around electricity?
Consider the circuit in Figure 21.29 and assume the batter has no internal resistance. (i) Just after the switch is closed, what is the current in the battery? (a) 0 (b) /2R (c) 2/R (d) /R (e) impossible to determine (ii) After a very long time, what is the current in the battery? Choose from the same choices.
Integrated Concepts (a) An immersion heater utilizing 120 V can raise the temperature of a 1.00 102 -g aluminum cup containing 350 g of water from 20.0°C to 95.0°C in 2.00 min. Find its resistance, assuming it is constant during the process. (b) A lower resistance would shorten the heating time. Discuss the practical limits to speeding the heating by lowering the resistance.
Integrated Concepts (a) Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 750-kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 2.00 102-m- high hill in 2.00 min at a constant 25.0-m/s speed while exerting 5.00 102 N of force to overcome air resistance and friction? (c) To travel at a constant 25.0-m/s speed, exerting a 5.00 102 N force to overcome air resistance and friction? See Figure 20.44.
While taking a bath, a person touches the metal case of a radio. The path through the person to the drainpipe and ground has a resistance of 4000 . What is the smallest voltage on the case of the radio that could cause ventricular fibrillation?
Calculate the emfx of a dry cell for which a potentiometer is balanced when Rx= 1,200 , while an alkaline standard cell with an emf of 1.600 V requires Rs= 1.247 to balance the potentiometer.