If a three farad capacitor and a six farad capacitor are connected in parallel, what is their equivalent capacitance?

If a three farad capacitor and a six farad capacitor are connected in parallel, what is their equivalent capacitance?
by

1 Answer

Answer :

ANSWER: 9 FARADS
by

Related questions

A two farad and a four farad capacitor are connected in parallel. What single capacitance is "equivalent" to this combination?

Description : A two farad and a four farad capacitor are connected in parallel. What single capacitance is "equivalent" to this combination? 

Last Answer : ANSWER: 6 FARADS

A two farad and a four farad capacitor are connected in series. What single capacitance is "equivalent" to this combination?

Description : A two farad and a four farad capacitor are connected in series. What single capacitance is "equivalent" to this combination?

Last Answer : ANSWER: 4/3 FARADS

what will be the capacitance if three capacitors connected in parallel each having value of 0.5 micro Farad ?

Description : what will be the capacitance if three capacitors connected in parallel each having value of 0.5 micro Farad ?

Last Answer : the total capacitace when connected in parallel Tc=total capacitor c1=c2=c3=0.5uf Tc=c1+c2+c3 Tc=1.5uf

Three capacitors with different capacitances are connected in series. Which of the following statements is TRUE? w) All three of the capacitors have the same potential difference between their plates. x) The magnitude of the charge is the same on all of the capacitor plates. y) The capacitance of the system depends on the voltage applied across the three capacitors.

Description : Three capacitors with different capacitances are connected in series. Which of the following statements is TRUE? w) All three of the capacitors have the same potential difference between their plates. x ... y) The capacitance of the system depends on the voltage applied across the three capacitors.

Last Answer : ANSWER: X -- THE MAGNITUDE OF THE CHARGE IS THE SAME ON ALL OF THE CAPACITOR PLATES

'Farad' is the unit of : (1) Capacitance (2) Inductance (3) Resistance (4) Conductance

Description : 'Farad' is the unit of : (1) Capacitance (2) Inductance (3) Resistance (4) Conductance

Last Answer : (1) Capacitance Explanation: The Farad is the SI derived unit of capacitance. It is named after the English physicist Michael Faraday.

‘Farad’ is the unit of : (1) Capacitance (2) Inductance (3) Resistance (4) Conductance

Description : ‘Farad’ is the unit of : (1) Capacitance (2) Inductance (3) Resistance (4) Conductance

Last Answer : Capacitance

Three capacitors 15µf, 18µf and 12µf are connected in a circuit. Find equivalent capacitance when they are connected in – 1) Series 2) Parallel

Description : Three capacitors 15µf, 18µf and 12µf are connected in a circuit. Find equivalent capacitance when they are connected in – 1) Series 2) Parallel

Last Answer : Ans: Value of equivalent capacitance: Given: C1= 15μF, C2=18 µF, C3= 12µF  i)For Series combination of capacitors: 1/Cs = (1/C1)+( 1/C2) +(1/C3) = (1/15)+( 1/18)+( 1/12) 1/Cs = 0.0666+0.0555+0. ... Cs = 4.868 µF   ii) For parallel combination of capacitors: Cp = C1 + C2 + C3 = 15 +18+ 12 = 45 µF 

A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is: w) 2 x 10-2 farads x) 5 x 10-2 farads y) 2 farads z) 5 farads

Description : A 10 volt battery connected to a capacitor delivers a charge of 0.5 coulombs. The capacitance of the capacitor is: w) 2 x 10-2 farads x) 5 x 10-2 farads y) 2 farads z) 5 farads

Last Answer : ANSWER: X -- 5 x 10-2 FARADS

A 10 farad capacitor is used in a circuit. The voltage difference between the plates of the capacitor is 20 volts. What is the magnitude of the charge on each of the capacitor's plates?

Description : A 10 farad capacitor is used in a circuit. The voltage difference between the plates of the capacitor is 20 volts. What is the magnitude of the charge on each of the capacitor's plates?

Last Answer : ANSWER: 200 COULOMBS

The length of both sides of a square parallel plate capacitor are doubled. The capacitance is: w) halved x) the same y) doubled z) quadrupled

Description : The length of both sides of a square parallel plate capacitor are doubled. The capacitance is: w) halved x) the same y) doubled z) quadrupled

Last Answer : ANSWER: Z -- QUADRUPLED

For a parallel-plate capacitor with plate area "A" and plate separation "d", the capacitance is proportional to which of the following? w) A divided by d squared x) A times d y) A divided by d z) d divided by A

Description : For a parallel-plate capacitor with plate area "A" and plate separation "d", the capacitance is proportional to which of the following? w) A divided by d squared x) A times d y) A divided by d z) d divided by A

Last Answer : ANSWER: Y -- A DIVIDED BY D

Equivalent capacitance ‘C’ of a system of capacitors C1,C2,C3 connected in parallel is

Description : Equivalent capacitance ‘C’ of a system of capacitors C1,C2,C3 connected in parallel is

Last Answer : Equivalent capacitance ‘C’ of a system of capacitors C1,C2,C3 connected in parallel is C = C1+C2+C3

A capacitor of capacitance `C` carrying charge `Q` is connected to a source of emf `E`. Finally, the charge on capacitor would be

Description : A capacitor of capacitance `C` carrying charge `Q` is connected to a source of emf `E`. Finally, the charge on capacitor would be

Last Answer : A capacitor of capacitance `C` carrying charge `Q` is connected to a source of emf `E`. Finally, the charge on ... . Q B. Q + CE C. C E D. none

Why 0.04 micro farad capacitor is used in a thermistor based fire alarm?

Description : Why 0.04 micro farad capacitor is used in a thermistor based fire alarm?

Last Answer : Need answer

If the capacitors are connected in parallel, then the potential difference across each capacitor is A. same B. different C. zero D. infinite

Description : If the capacitors are connected in parallel, then the potential difference across each capacitor is A. same B. different C. zero D. infinite

Last Answer : same

Total capacitance of 300 mF capacitor and a 600 mF in series isA. 300 mF B. 500 mF C. 200 mF D. 1000 mF

Description : Total capacitance of 300 mF capacitor and a 600 mF in series isA. 300 mF B. 500 mF C. 200 mF D. 1000 mF

Last Answer : 200 mF

If charge stored on plates of capacitor is large, then capacitance will be A. small B. large C. zero D. infinite

Description : If charge stored on plates of capacitor is large, then capacitance will be A. small B. large C. zero D. infinite

Last Answer : large

Two 10 Ω resistors are connected in parallel, their equivalent resistance is A. 5 ΩB. 0.2 ΩC. 15 ΩD. 20 Ω

Description : Two 10 Ω resistors are connected in parallel, their equivalent resistance isA. 5 Ω B. 0.2 Ω C. 15 Ω D. 20 Ω

Last Answer :  5 Ω

How will the total capacitance change, when two capacitors are connected in parallel?

Description : How will the total capacitance change, when two capacitors are connected in parallel?

Last Answer : The  capacitance  will  increase  if  connected  in  parallel  because  it  will  be  like  you  have  increase  surface  area  of  a  plate  by  connecting  it  to   another.

State three factors that affect the capacitance of a capacitor.

Description : State three factors that affect the capacitance of a capacitor.

Last Answer : a. The area of the plates. b. The distance between the plates. c. The dielectric constant of the material between the plates.

State three factors that affect the capacitance of a capacitor.

Description : State three factors that affect the capacitance of a capacitor.

Last Answer : a. The area of the plates. b. The distance between the plates. c. The dielectric constant of the material between the plates.

A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be – (1) nR (2) R/n (3) n/R (4) R/n²

Description : A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be – (1) nR (2) R/n (3) n/R (4) R/n²

Last Answer : (4) R/n² Explanation: Since R is directly proportional to length of the wire, when wire is cut into equal parts, then Resistance of each part = R/n

A five ohm and a ten ohm resistor are connected in parallel, what single resistance is "equivalent" to this combination?

Description : A five ohm and a ten ohm resistor are connected in parallel, what single resistance is "equivalent" to this combination? 

Last Answer : ANSWER: 3 AND 1/3 OHM

A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be

Description : A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be

Last Answer : R/n2

In a capacitor start single-phase induction motor, the capacitor is connected (A) in series with main winding. (B) in series with auxiliary winding. (C) in series with both the windings. (D) in parallel with auxiliary winding.

Description : In a capacitor start single-phase induction motor, the capacitor is connected (A) in series with main winding. (B) in series with auxiliary winding. (C) in series with both the windings. (D) in parallel with auxiliary winding.

Last Answer : Ans: B To make single phase motor self start. We split the phases at 90 degree. Hence, motor behaves like a two phase motor.

A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V,

Description : A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum when the supply frequency is 1 kHz. The ... (A) 40, 400 Hz (B) 10, 100 Hz (C) 20, 50 Hz (D) 50, 20 Hz

Last Answer : A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum ... supply frequency is 1 kHz. The approximate values of Q-factor and bandwidth are, respectively 20, 50 Hz

The effective capacitance of four, 5-microfarad capacitors connected in series is: w) 0.20 microfarad x) 0.5 microfarad y) 1.0 microfarad z) 1.25 microfarad

Description : The effective capacitance of four, 5-microfarad capacitors connected in series is: w) 0.20 microfarad x) 0.5 microfarad y) 1.0 microfarad z) 1.25 microfarad

Last Answer : ANSWER: Z -- 1.25 MICROFARAD

What is the SI unit of frequency? (1) Newton (2) Watt (3) Farad (4) Hertz

Description : What is the SI unit of frequency? (1) Newton (2) Watt (3) Farad (4) Hertz

Last Answer : (4) Hertz Explanation: The number of waves or vibrations passing through a point in one second is called Frequency. The SI (System International) Unit of Frequency is Hertz(Hz).

What is unit of Electrical Capacity? (1) henry (2) farad (3) volt (4) ohm

Description : What is unit of Electrical Capacity? (1) henry (2) farad (3) volt (4) ohm

Last Answer : (2) farad Explanation: Henry is unit of Magnetic Induction, volt is unit of Potential Difference, ohm is unit of Electric Resistance.

Three resistors connected in parallel have values of 12 kΩ, 20kΩ, and 30kΩ. What is the equivalent resistance? A37. 6kΩ Q38. Two resistors connected in parallel have values of 10 kΩ and 30kΩ. What is eht equivalent resistance?

Description : Three resistors connected in parallel have values of 12 kΩ, 20kΩ, and 30kΩ. What is the equivalent resistance? A37. 6kΩ Q38. Two resistors connected in parallel have values of 10 kΩ and 30kΩ. What is eht equivalent resistance?

Last Answer : 7.5kΩ

The value of the capacitance depends upon the________________? A.voltage applied B. thickness of the capacitor plates C. geometry of the capacitor D. dinsity of the capacitor plates

Description : The value of the capacitance depends upon the________________? A.voltage applied B. thickness of the capacitor plates C. geometry of the capacitor D. dinsity of the capacitor plates

Last Answer : Ans: C

In the illustrated circuit, one advantage of the capacitor coupling over direct coupling is ____________. EL-0048 A. as the frequency decreased the capacitive reactance (Xc) increases B. the amplifier becomes more efficient at lower capacitance. C. the arrangement allows the coupling of the signal while it isolates the biasing of each stage. D. good frequency response.

Description : In the illustrated circuit, one advantage of the capacitor coupling over direct coupling is ____________. EL-0048 A. as the frequency decreased the capacitive reactance (Xc) increases B. the amplifier becomes ... of the signal while it isolates the biasing of each stage. D. good frequency response.

Last Answer : Answer: C

Capacitance in an AC circuit will _____________. A. stop current flow once the capacitor is fully charged B. allow current flow in only one direction C. oppose any change in circuit voltage D. rectify the current

Description : Capacitance in an AC circuit will _____________. A. stop current flow once the capacitor is fully charged B. allow current flow in only one direction C. oppose any change in circuit voltage D. rectify the current

Last Answer : Answer: C

Find the time constant of a capacitor with capacitance of 2 microfarad having an internal resistance of 4 megaohm. a) 2 b) 0.5 c) 8 d) 0.25

Description : Find the time constant of a capacitor with capacitance of 2 microfarad having an internal resistance of 4 megaohm. a) 2 b) 0.5 c) 8 d) 0.25

Last Answer : c) 8

Reduction in the capacitance of a capacitor-start motor, results in reduced (A) Noise. (B) Speed. (C) Starting torque. (D) Armature reaction.

Description : Reduction in the capacitance of a capacitor-start motor, results in reduced (A) Noise. (B) Speed. (C) Starting torque. (D) Armature reaction.

Last Answer : Ans: C Reduction in the capacitance reduces starting voltage, which results in reduced starting torque.

If a capacitance is charged by a square wave current source, then the voltage across the capacitor will be

Description : If a capacitance is charged by a square wave current source, then the voltage across the capacitor will be (a) Square wave (b) Step function (c) Triangular wave (d) Zero

Last Answer : If a capacitor is charged by a square wave current source, the voltage across the capacitor is : triangular wave

The capacitance of the capacitor is directly proportional to the

Description : The capacitance of the capacitor is directly proportional to the

Last Answer : The capacitance of the capacitor is directly proportional to the Area of the plate

A capacitor of capacitance 50 micro farads is charged to a potential difference of 200 Volts.

Description : A capacitor of capacitance 50 micro farads is charged to a potential difference of 200 Volts. Find out energy stored in the condenser?

Last Answer : A capacitor of capacitance 50 micro farads is charged to a potential difference of 200 Volts. Find out energy stored in the condenser? 1 joule

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 capacitance when a capacitor passes a current of 31.43 mA when supplied with 40 V AC with a

Description : What is the capacitance when a capacitor passes a current of 31.43 mA when supplied with 40 V AC with a frequency of 1000 Hz? A) 0.125 F B) 0.125 μF C) 1257.2 μF D) None of these

Last Answer : What is the capacitance when a capacitor passes a current of 31.43 mA when supplied with 40 V AC with a frequency of 1000 Hz? A) 0.125 F B) 0.125 μF C) 1257.2 μF D) None of these

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

With the help of which bridge are the capacitance and dielectric loss of a capacitor generally measured ?

Description : With the help of which bridge are the capacitance and dielectric loss of a capacitor generally measured ?

Last Answer : With the help of Schering bridge are the capacitance and dielectric loss of a capacitor generally measured.

Reduction in the value of capacitance of a capacitor -start motor, results in reduced:

Description : Reduction in the value of capacitance of a capacitor -start motor, results in reduced: (A) noise (B) speed (C) starting torque (D) armature reaction

Last Answer : A

When 2,4 and 6 ohms resistor are connected in parallel their resultant equivalent resistance will be A. 12ohm b. 11/12ohm C. 12/11ohm d. None

Description : When 2,4 and 6 ohms resistor are connected in parallel their resultant equivalent resistance will be A. 12ohm b. 11/12ohm C. 12/11ohm d. None

Last Answer : C. 12/11ohm

A capacitor and a coil are connected in series. The capacitor is charged and allowed to discharge through the coil. The current that will then flow through the capacitor-coil combination will do one of the following things. Will it: w) flow in one direction, beginning at a maximum and decreasing rapidly to zero x) oscillate indefinitely y) oscillate but diminish steadily to zero z) oscillate at high frequency at first but then at slower frequency

Description : A capacitor and a coil are connected in series. The capacitor is charged and allowed to discharge through the coil. The current that will then flow through the capacitor-coil combination will do ... but diminish steadily to zero z) oscillate at high frequency at first but then at slower frequency  

Last Answer : ANSWER: Y -- OSCILLATE BUT DIMINISH STEADILY TO ZERO

A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Description : A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

Last Answer : ANSWER: W -- CONSTANT

Five volts are applied across the plates of a parallel plate capacitor. The distance of separation of the plates is .02 meters. What is the magnitude of the electric field inside the capacitor?

Description : Five volts are applied across the plates of a parallel plate capacitor. The distance of separation of the plates is .02 meters. What is the magnitude of the electric field inside the capacitor?

Last Answer : ANSWER: 250 VOLTS PER METER or 250 NEWTONS PER COULOMB

Three resistances 20 Ω, 30 Ω and 60 Ω are connected in parallel, their combined resistance is given by A. 110 Ω B. 50 Ω C. 20 Ω D. 10 Ω

Description : Three resistances 20 Ω, 30 Ω and 60 Ω are connected in parallel, their combined resistance is given by A. 110 Ω B. 50 Ω C. 20 Ω D. 10 Ω

Last Answer : 10 Ω

A `5 Omega` resistor is connected in series with a parallel combination of n resistors of `6 Omega` each. The equivalent resistance is `7 Omega`. Find

Description : A `5 Omega` resistor is connected in series with a parallel combination of n resistors of `6 Omega` each. The equivalent resistance is `7 Omega`. Find

Last Answer : A `5 Omega` resistor is connected in series with a parallel combination of n resistors of `6 Omega ... The equivalent resistance is `7 Omega`. Find n.

Two nonideal batteries are connected in parallel. Consider the following statements: (A)The equivalent emf is smaller than either of the two emfs. (B)

Description : Two nonideal batteries are connected in parallel. Consider the following statements: (A)The equivalent emf is smaller than either of the two emfs. (B)

Last Answer : Two nonideal batteries are connected in parallel. Consider the following statements: (A)The equivalent emf is ... wrong D. Both A and B are correct