Problem on capacitor

Problem on capacitor
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Problem on capacitor 1 : https://youtu.be/ZyT3WOFN8fs

Problem on capacitor 2 : https://youtu.be/JBwEfekvutE

Problem on capacitor 3 : https://youtu.be/E1lhIn5t8Mo

Problem on capacitor 4 : https://youtu.be/yl651f4IUfg
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Series and parallel capacitor problem

Description : Series and parallel capacitor problem

Last Answer : Series and parallel capacitor problem 1 : https://youtu.be/MSl5mRwtjAE Series and parallel capacitor problem 2 : https://youtu.be/yGwbpyEtIyw Series and parallel capacitor problem 3 : https:// ... https://youtu.be/_7KwEwWqiNU Series and parallel capacitor problem 10 : https://youtu.be/et8MCWV_OyE

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Why is a capacitor used in a single phase motor and not in three phase motor ?

Description : Why is a capacitor used in a single phase motor and not in three phase motor ?

Last Answer : In 1-phase induction motor capacitor work is generate the auxiliary winding current than excite the main winding to rotor starts rotate. After rotor start rotating about 75% of their speed than auxiliary ... emf to start the motor.so,in 3-phase induction motor is self start induction motor.

Does current flow through a capacitor ?

Description : Does current flow through a capacitor ?

Last Answer : Imagine a pipe with a flexible diaphram in the middle separating two haves of the pipe. Now the pipe is filled with air. If you apply a pressure to one end the diaphram will deform ... capacitor, the effects on electrons will be recreated across the boundary. But theres no electrical connection...

Why is a capacitor used in a ceiling fan ?

Description : Why is a capacitor used in a ceiling fan ?

Last Answer : For splitting phase so that a rotating magnetic field will be produced & as per Lenz's law a torque will be created & rotor starts rotating. In single phase if capacitor is not used for split phase then a pulsating mag. field is produced which is unable to produce torque on rotor

Explain the working of a single phase capacitor start induction motor.

Description : Explain the working of a single phase capacitor start induction motor. 

Last Answer : Single phase capacitor start induction motor https://youtu.be/31lvvzU5Puc

Energy stored in capacitor examples

Description : Energy stored in capacitor examples

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For a DC circuit capacitor is

Description : For a DC circuit capacitor is

Last Answer : For a DC circuit capacitor is virtually an open circuit

What is a capacitor voltage transformer?

Description : What is a capacitor voltage transformer? A) It is a transformer used in power systems to step up low voltage signals and provide extra high voltage B) It is a transformer used in power systems ... in power systems to step down extra high voltage signals and provide low voltage D) None of these

Last Answer : What is a capacitor voltage transformer? A) It is a transformer used in power systems to step up low voltage signals and provide extra high voltage B) It is a transformer used in power systems ... power systems to step down extra high voltage signals and provide low voltage D) None of these

What happens to the capacitance if mica is inserted between the plates of an air capacitor?

Description : What happens to the capacitance if mica is inserted between the plates of an air capacitor? A) The capacitance increases B) The capacitance decreases C) The capacitance remains the same D) The capacitance becomes zero

Last Answer : What happens to the capacitance if mica is inserted between the plates of an air capacitor? A) The capacitance increases B) The capacitance decreases C) The capacitance remains the same D) The capacitance becomes zero

What is the charge on each capacitor when a 150 V is applied across two capacitors with values 5 μF and 10 μF,

Description : What is the charge on each capacitor when a 150 V is applied across two capacitors with values 5 μF and 10 μF, connected in series? A) 500 μC B) 0.5 μC C) 0.5 C D) None of these

Last Answer : What is the charge on each capacitor when a 150 V is applied across two capacitors with values 5 μF and 10 μF, connected in series? A) 500 μC B) 0.5 μC C) 0.5 C D) None of these

What is the stored energy when 200 V is applied across a 7 μF capacitor?

Description : What is the stored energy when 200 V is applied across a 7 μF capacitor? A) 1400 Joules B) 0.7 Joules C) 0.14 Joules D) None of these

Last Answer : What is the stored energy when 200 V is applied across a 7 μF capacitor? A) 1400 Joules B) 0.7 Joules C) 0.14 Joules D) None of these

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

Description : Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

Last Answer : Power factor of an inductive circuit is usually improved by connecting capacitor to it in parallel.

The best place to install a capacitor is?

Description : The best place to install a capacitor is?

Last Answer : The best place to install a capacitor is across the terminals of the inductive load.

The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q....

Description : The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes_____ohms.

Last Answer : The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes 10 ohms.

what is the difference between capacitor and battery ?

Description : what is the difference between capacitor and battery ?

Last Answer : A capacitor stores power but in very small quantitys and work in D/C and A/C circuits and it needs a power source from wich it gets the power it stores and a battery also stores power but in much larger quantitys measured in Amp/Hours

Why we have to change the capacitor of ceiling fan after some months?

Last Answer : Capacitor use in fan is made up of dielectic material which is in semi solid material having high capacity.but generation of heat in capacitor the semi solid material converted into dry solid because of ... capacity becomes lower and lower so for good result of our fan we have to change it.

State the applications and specification of (i) Resistor (ii) Capacitor (iii)Inductor

Description : State the applications and specification of (i) Resistor (ii) Capacitor (iii)Inductor

Last Answer : Application of resistor: 1.Resistors are used in high frequency instrument. 2.Resistor is used in power control circuit. 3.It is used in DC power supplies. 4.Resistors are used ... DC Current  3.Electromagnetic Interference (EMI)  4.Magnetic Saturation Flux Density  5.Curie Temperature 

Charging Action of capacitor

Description : Charging Action of capacitor

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Capacitor : Before charging takes place

Description : Capacitor : Before charging takes place

Last Answer : Capacitor : Before charging takes place

Which of the following can be used to measure the capacitance of a capacitor?

Description : Which of the following can be used to measure the capacitance of a capacitor? A) Rheostat B) Schering bridge C) Wheatstone bridge D) None of these

Last Answer : Which of the following can be used to measure the capacitance of a capacitor? A) Rheostat B) Schering bridge C) Wheatstone bridge D) None of these

Dielectric loss in a capacitor is best measured by

Description : Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

Last Answer : Dielectric loss in a capacitor is best measured by Schering Bridge

A capacitor is generally a?

Description : A capacitor is generally a?

Last Answer : A capacitor is generally a linear and bilateral component.

Commonly used standard capacitor is?

Last Answer : Commonly used standard capacitor is concentric cylindrical type.

If the current in a capacitor leads the voltage by 80°, the loss angle of the capacitor is?

Last Answer : If the current in a capacitor leads the voltage by 80°, the loss angle of the capacitor is 10°.

When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially...

Description : When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is ?

Last Answer : When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is all right.

The capacitors used in single-phase capacitor motors have no?

Last Answer : The capacitors used in single-phase capacitor motors have no polarity marking.

To reverse the direction of rotation of a capacitor start motor while it is running we should?

Last Answer : To reverse the direction of rotation of a capacitor start motor while it is running we should disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding.

If the centrifugal switch of a two-value capacitor motor using two capacitors fails to open then?

Last Answer : If the centrifugal switch of a two-value capacitor motor using two capacitors fails to open then Electrolytic capacitor will, in all probability, suffer break down.

Two-value capacitor motor finds increased application as compressor motor in small home air-conditioners because?

Last Answer : Two-value capacitor motor finds increased application as compressor motor in small home air-conditioners because it has low starting as well as running currents at relatively high power factor.