The frequency of an alternating current is?

1 Answer

Answer :

The frequency of an alternating current is the number of waves passing through a point in one second.

Related questions

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Last Answer : AC stands for Alternating Current meaning voltage or current that changes polarity or direction respectively over time. An Alternating Current (AC) is an electric current whose magnitude ... energy are known as alternators and are simpler construction than DC electromechanical generators.

Description : Describe the difference between direct and alternating current.

Last Answer : Direct current is the flow of electricity or charge in one direction..  Alternative current is the flow of charge that doesn't flow in one direction. 

Description : When an alternating current passes through an ohmic resistance the electrical power converted into heat is?

Last Answer : When an alternating current passes through an ohmic resistance the electrical power converted into heat is true power.

Description : In the case of an unsymmetrical alternating current the average value must always be taken over?

Last Answer : In the case of an unsymmetrical alternating current the average value must always be taken over the whole cycle.

Description : Can you make alternating current through a battery?

Last Answer : Yes, we can make AC through a battery using an inverter.

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Last Answer : Alternating current is measured by induction ammeter.

Description : In a series R-C circuit, with the increase in frequency, current (A) Reduces (B) Increases (C) Does not change (D) Becomes zero

Last Answer : In a series R-C circuit, with the increase in frequency, current Increases

Description : In a series RLC high Q circuit, the current peaks at a frequency  (1) equal to the resonant frequency (2) greater than the resonant frequency (3) less than the resonant frequency (4) equal to half the resonant frequency

Last Answer : In a series RLC high Q circuit, the current peaks at a frequency equal to the resonant frequency

Last Answer : For measuring current at high frequency we should use thermocouple instrument.

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Last Answer : Alternating voltages and phasors (Problem 15)

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Last Answer : Alternating voltages and phasors (Problem 14)

Description : Alternating voltages and phasors (Problem 13)

Last Answer : Alternating voltages and phasors (Problem 13)

Description : Alternating voltages and phasors (Problem 12)

Last Answer : Alternating voltages and phasors (Problem 12)

Description : Alternating voltages and phasors (Problem 11)

Last Answer : Alternating voltages and phasors (Problem 11)

Description : Alternating voltages and phasors (Problem 10)

Last Answer : Alternating voltages and phasors (Problem 10)

Description : Alternating voltages and phasors (Problem 9)

Last Answer : Alternating voltages and phasors (Problem 9)

Description : Alternating voltages and phasors (Problem 8)

Last Answer : Alternating voltages and phasors (Problem 8)

Description : Alternating voltages and phasors (Problem 7)

Last Answer : Alternating voltages and phasors (Problem 7)

Description : Alternating voltages and phasors (Problem 6)

Last Answer : Alternating voltages and phasors (Problem 6)

Description : Alternating voltages and phasors (Problem 5)

Last Answer : Alternating voltages and phasors (Problem 5)

Description : Alternating voltages and phasors (Problem 4)

Last Answer : Alternating voltages and phasors (Problem 4)

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Last Answer : Alternating voltages and phasors phasor addition and division (Problem 3)

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Last Answer : Alternating voltages and phasors : phasor addition (Problem 2)

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Last Answer : Alternating voltages and phasors (Problem 1)

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Last Answer : The basic block diagram of basic digital frequency meter (DFM) is shown in above figure. The signal whose frequency we have to be measured is first to be amplified through amplifier. The output of amplifier ... = Number of counts. t = Time interval between start and stop condition of the gate.

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Last Answer : 1) Virtual height:- The incident and refracted rays follow paths that are exactly the same as they have been if reflection had taken place from a surface located at a greater height, called ... angle of incidence is other than the normal is known as maximum unstable frequency. MUF= fc secθ 

Description : Draw the diagram and explain the working of ferrodynamic type frequency meter. 

Last Answer : Ferrodynamic type frequency meter: (Electrical resonance type frequency meter): It consists of a fixed coil. The supply whose frequency is to be measured is connected across it. This coil ... so selected that the moving coil takes up a convenient position when frequency is of normal value. 

Description : List the different types of frequency meters.

Last Answer : Different types of frequency meters  1. Reed type [Mechanical type] 2. Ferro-dynamic type [Resonances type] 3. Weston type 4. Ratio-meter type 5. Saturable core type 6. Digital type

Description : Explain working of Weston type frequency meter.

Last Answer : Weston Type Frequency Meter: There are two fixed coils marked as A and B. Each coil divided into two equal parts and are fixed such that their magnetic axis are perpendicular to each ... leading to deflections in either direction depending on the currents there in, due to changed impedances.

Description : State the application of phase sequence indicator; clip on ammeter, frequency meter & P.F. meter.

Last Answer : Phase Sequence Indicator:  1. For finding correct phase sequence of supply  2. For obtaining exact instant of parallel operation of alternators.  3. For obtaining reversal of rotation ...  4. In electroplating industries   5. In various processes industries for measuring power factor

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Last Answer : Types of Oscillators generating frequencies in RF range: i) Hartley Oscillator ii) Colpitt’s Oscillator iii) Clapp Oscillator

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Description :  A pulse radar has a pulse repetition frequency (PRF) of 3 KHz. If the radar is emitting at 10 GHz, what is the maximum unambiguous range for this radar? A) 5 Km B) 5 m C) 50 Km D) 15 m 

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Last Answer : In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of L or C.

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Last Answer :  A sine wave has a frequency of 50 Hz. Its angular frequency is 100 n radian/second.

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