What is the role of a capacitor in a circuit?
When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when: a) Static strain are being measured b) Dynamic strain are being measured c) Both Static and dynamic strain are being measured d) None of the above Last Answer : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when: Dynamic strain are being measured
The purpose of the capacitor within component 'B' of the circuit shown in the illustration is to ____________. EL-0081 A. prolong the life of the component's contacts B. discharge the neon within ... the inductive reactance in the circuit D. store power to operate the circuit should 'D' open Last Answer : Answer: A
When a capacitor is connected in series with a Marconi antenna? A. Antenna open circuit stops transmission B. An inductor of equal value must be added C. No change occurs to antenna D. Antenna resonant frequency increases Last Answer : D. Antenna resonant frequency increases
A capacitor and coil in parallel is called Last Answer : 1. A tuned circuit
Last Answer : A dielectric material is placed in between the plates of a capacitor, it Increases the capacitance.
Last Answer : In a power supply a shorted input capacitor is likely to result in No voltage output.
Last Answer : A capacitor stores energy in Dielectric dipole
Last Answer : The capacitor charging current is An exponential growth function
Last Answer : The voltage across a capacitor Lags the current through it by 90
Last Answer : For a pure capacitor, the voltage-current relationship is: Voltage lags current by 90*
What are the characteristics of a capacitor?
Which capacitor is used for high frequency?
Why shunt capacitor is used? Last Answer : To improve voltage at receiving end and power factor
Why capacitor bank is used? Last Answer : In industrial or factory used E.B Power supply must be maintained above 0.90 power factor is compulsory for avoid EB Penalty. So APFC ( automatic Power factor control ) panel is used to maintained balance the load and PF maintained.
What is the basic use of capacitor?
What is the basic function of a capacitor?
How do you discharge a capacitor in a microwave?
What is the direction of flow when charging a capacitor?
How do you charge a capacitor with a battery? Last Answer : The capacitor is connected in parallel with the battery.
What is the symbol of a capacitor? Last Answer : symbol of a capacitor
How do I discharge a capacitor?
How do you know when a capacitor is bad?
Which side of a capacitor is negative? Last Answer : In electrolytic type negative is shorter lead and usually mark in the tank. But of course not applicable to non-polar.
How do you test a capacitor with a multimeter?
does capacitor store energy ? Last Answer : yes capacitor stores energy
which capacitor stores more charge ? Last Answer : supercapacitor
what does a capacitor do? Last Answer : It store energy in.the form of charges It allows AC but restricted DC
The magnitude of the open-circuit and short circuit input impedance of a transmission line are 100 ohm and 25 ohm respectively. The characteristic impedance of line is: (1) 25 ohm (2) 50 ohm (3) 75 ohm (4) 100 ohm Last Answer : The magnitude of the open-circuit and short circuit input impedance of a transmission line are 100 ohm and 25 ohm respectively. The characteristic impedance of line is 25 ohm.
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.
In the circuit shown in the figure, the capacitor C is charged to a potential Vo. The heat generated in the circuit when the switch S is closed, is Last Answer : In the circuit shown in the figure, the capacitor C is charged to a potential Vo. The heat generated in the circuit when ... )^(2)` D. `8 CV _(0)^(2)`
In an L-C circuit shown in figure C=1F, L=4H At time t=0, charge in the capacitor is 4C and it is decreasing at a rate of `sqrt5 C//s` Choose the corr Last Answer : In an L-C circuit shown in figure C=1F, L=4H At time t=0, charge in the capacitor is 4C and it is ... a and b are correct D. Both a and b are wrong
In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 C` and it is decreasing at the rate of `sqrt(5) Last Answer : In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 ... ))` C. `2tan^(-1)((2)/(3)) D. None of these
In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 C` and it is decreasing at the rate of `sqrt(5) Last Answer : In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 ... statement. A. 6 C B. 8 C C. 10 C D. 12 C
An L-C circuit contains a 0.60 H inductor and a `25muF` capacitor is `3.0xx10^(-5)C?` Last Answer : An L-C circuit contains a 0.60 H inductor and a `25muF` capacitor is `3.0xx10^(-5)C?`
What is the capacitive resistance of a 0.04 microfarad capacitor in ac circuit that has a frequency of 1000 hz? Last Answer : The capacitive reactance is approximately 4 kΩ .
Which of the device is employed in substation to limit the short circuit current in the power system: a) Shunt condenser b) Reactor c) Series capacitor d) Shunt capacitor Last Answer : Ans: B
A capacitor (condenser) is used in an electrical circuit to (a) step down voltage (b) step up voltage (c) store electric charge (d) produce electric charge 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 ... of the signal while it isolates the biasing of each stage. D. good frequency response. Last Answer : Answer: C
In the illustration, the small battery and Rb are in the circuit to apply ________. EL-0022 A. forward bias to the emitter-base B. reverse bias to the emitter-base C. a 'reference charge' on the input capacitor D. a buffer between the input ground and the emitter ground Last Answer : Answer: A
What is the value of the capacitor in the astern valve position circuit shown in the illustration? EL-0099 A. 100 kFarad B. 0.5 microfarad C. 0.5 millifarad D. 50 kFarad Last Answer : Answer: B
In the illustrated circuit, the amplifier is connected in what basic configuration? EL-0045 A. common emitter B. common collector C. darlington paired, capacitor coupled D. common base Last Answer : Answer: D
When working on electrical circuits containing large capacitors, in addition to deenergizing the circuit, which of the listed precautions should also be taken? A. Keep all radio equipment ... capacitor insulation resistance. C. Ground the capacitor terminals. D. Check capacitor circuit polarity. Last Answer : Answer: C
Electric circuits are protected against overloads and short circuits by means of a/an ______________. A. circuit breaker B. amplifier C. diode D. capacitor Last Answer : Answer: A
When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors ... circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit Last Answer : Answer: A
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
Before touching a small capacitor connected to a de-energized circuit, or even one that is completely disconnected, you should ____________. A. gently tap the body with a screwdriver B. tag it ... insulated fuse puller D. short circuit the terminals to make sure that the capacitor is discharged Last Answer : Answer: D
Electrical circuits are protected against overheating by means of a/an ______________. A. circuit breaker B. amplifier C. diode D. capacitor Last Answer : Answer: A
How do you eliminate radio frequency variation of an oscillator transmitter caused by its supply voltage? A. Use new power supply B. Lossen power supply shielding C. Use of regulated power supply D. Use of high capacitor in the supply circuit Last Answer : C. Use of regulated power supply
_______is not as fast as SRAM but is cheaper and is used for main memory. Each bit uses a single capacitor and single transistor circuit.: a) DRAM b) SDRAM c) Both of Above d) None of These Last Answer : a) DRAM