What is the direction of flow of current?
Last Answer : Current flows from anode to cathode(opposite direction to flow of electrons)
Show More
95 views
1 answer
asked
Mar 14, 2018
by
anonymous
What is the direction of the conventional current flow?
Last Answer : The conventional current flow in opposite direction of flow of electrons. The electrons flow from negative terminal of battery to positive terminal of battery. And conventional current flow from positive terminal of battery to negative terminal of battery.
Show More
101 views
1 answer
asked
Mar 14, 2018
by
anonymous
Electric current passing through the circuit produces?
Last Answer : Electric current passing through the circuit produces thermal effect.
Show More
142 views
1 answer
asked
Mar 25, 2018
by
anonymous
.jpg)
What is the direction of the flow of electrons?
Last Answer : Electrons flow cathode to anode or in an oposite direction of convection current flow or holes.
Show More
110 views
1 answer
asked
Mar 14, 2018
by
anonymous
What is the direction of flow when charging a capacitor?
Show More
74 views
0 answers
asked
Mar 15, 2018
by
anonymous
.jpg)
What is the direction of the induced electric field?
Last Answer : It is in opposite direction to the one that produced it.
Show More
78 views
1 answer
asked
Mar 14, 2018
by
anonymous
What is the direction of the electric field?
Last Answer : Electric field is at right angle widh flow of current (right hand rule).
Show More
127 views
1 answer
asked
Mar 14, 2018
by
anonymous
How does AC current change direction?
Last Answer : This is because the angle at which the magnetic fields cuts across a winding changes its poles thus current has to change dirention .
Show More
92 views
1 answer
asked
Mar 14, 2018
by
anonymous
What happens when you reverse the direction of the current in an electromagnet?
Last Answer : When you reverse current direction in an electromagnet, the magnetic poles will also change.
Show More
172 views
1 answer
asked
Mar 14, 2018
by
anonymous
What is the direction of an AC current?
Last Answer : The magnitude and direction of alternating current is changes with respect to time. So for half cycle it is positive and for next half cycle it is negative.
Show More
2.6k views
2 answers
asked
Mar 14, 2018
by
anonymous
What is the direction of the induced current?
Show More
81 views
0 answers
asked
Mar 14, 2018
by
anonymous
why current flows in opposite direction of electrons?
Last Answer : Hi team, the current flow is nothing but flow of electrons But the conventional direction I'd opposite to actual current flow . ..
Show More
116 views
1 answer
asked
Oct 3, 2017
by
anonymous
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...
Show More
102 views
1 answer
asked
Aug 25, 2019
by
anonymous
The current flow in a battery is due to ______ A) movement of ions B) movement of protons C) movement of holes D) movement of neutrons
Last Answer : The current flow in a battery is due to movement of ions
Show More
104 views
1 answer
asked
Apr 29, 2018
by
anonymous
Inductance affects the direct current flow?
Last Answer : Inductance affects the direct current flow at the time of turning on and off.
Show More
133 views
1 answer
asked
Mar 25, 2018
by
anonymous
Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor
Last Answer : Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor
Show More
138 views
1 answer
asked
Apr 28, 2018
by
anonymous
Why do you need a closed circuit for electricity to flow?
Last Answer : When the circuit is closed , a potential diffrence is realized between the two nodes connected .This causes flow of electrons and convection current.
Show More
150 views
1 answer
asked
Mar 10, 2018
by
anonymous
List out any four effects of electric current used in measuring instruments & write name of meter working on it.
Last Answer : Effects of Electric Current used in measuring instruments: 1. Magnetic Effect: PMMC and Moving Iron type Ammeters, voltmeter and Dynamometer type wattmeters etc. 2. Electromagnetic induction ... . Electrostatic effect: Voltmeters. 5. Hall Effect: Flux meter, Poynting vector wattmeter.
Show More
996 views
1 answer
asked
Sep 6, 2018
by
anonymous
State various effects of electric current and explain any one.
Last Answer : Effects of Electric Current: 1. Magnetic Effect: When a current is passed through a conductor, magnetic field is produced round the conductor. Due to this field when current carrying ... The rise in temperature is converted into elongation of hot wire element causes displacement of pointer.
Show More
115 views
2 answers
asked
Sep 4, 2018
by
anonymous
State Ohm’s law for electric circuit.
Last Answer : Ohms law -States that the current flows in a circuit is directly proportional to the applied voltage (V) and inversely the proportional resistance provided with the temperature main constant
Show More
78 views
2 answers
asked
Aug 17, 2019
by
anonymous
List three important characteristics of an electric circuit.
Show More
256 views
0 answers
asked
Jun 29, 2019
by
anonymous
Compare electric and magnetic circuit.
Last Answer : Comparison between Magnetic and Electric Circuits
Show More
401 views
5 answers
asked
Aug 8, 2018
by
anonymous
Draw a typical electric circuit including ammeter and voltmeter.
Last Answer : The figure shows typical electric circuit including ammeter and voltmeter. Ammeter is connected in series for measurement of current. Voltmeter is connected in parallel for measurement of voltage. Fuse is use ... are used. If the electric supply is DC the DC ammeter and DC voltmeter are used.
Show More
325 views
1 answer
asked
Aug 8, 2018
by
anonymous
Explain why potential difference is necessary to produce current in a circuit.
Show More
99 views
0 answers
asked
Jun 29, 2019
by
anonymous
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
Show More
111 views
1 answer
asked
May 8, 2018
by
anonymous
Magnitude of current at resonance in R-L-C circuit?
Last Answer : The current will be maximum if it is a series rlc circuit.
Show More
282 views
2 answers
asked
Mar 25, 2018
by
anonymous
In a loss-free R-L-C circuit the transient current is?
Last Answer : In a loss-free R-L-C circuit the transient current is sinusoidal.
Show More
403 views
1 answer
asked
Mar 25, 2018
by
anonymous
Electric Current
Last Answer : Electric current is the flow of charges. The electrons flow from higher density area of electrons to lowers density area of electrons. The terminal of battery which we called positive terminal of ... circuit is called electric current. The unit of electric current is Coulomb per Second or Ampere.
Show More
156 views
4 answers
asked
Aug 15, 2019
by
anonymous
A) Watt B) Volts C) Farad D) Ampere
Last Answer : Correct answer: D) Ampere
Show More
2.6k views
1 answer
asked
Jun 28, 2019
by
anonymous
When electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is?
Last Answer : When electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is D.C.
Show More
164 views
1 answer
asked
Mar 25, 2018
by
anonymous
When electric current passes through a metallic conductor, its temperature rises. This is due to?
Last Answer : When electric current passes through a metallic conductor, its temperature rises. This is due to collisions between conduction electrons and atoms.
Show More
236 views
1 answer
asked
Mar 25, 2018
by
anonymous
Heat in a conductor is produced on the passage of electric current due to?
Last Answer : Heat in a conductor is produced due to frictional collision of electrons flow as they conduct current.
Show More
227 views
1 answer
asked
Mar 25, 2018
by
anonymous
An instrument which detects electric current is known as?
Last Answer : An instrument which detects electric current is known as galvanometer.
Show More
470 views
1 answer
asked
Mar 25, 2018
by
anonymous
How can a magnetic field be used to generate an electric current?
Last Answer : Magnetic field can be used to generate electric current on a condition that it is on a rate of changing magnetic flux. (Faraday's law)
Show More
106 views
1 answer
asked
Mar 10, 2018
by
anonymous
Last Answer : Meggar is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another.
Show More
376 views
1 answer
asked
Mar 21, 2018
by
anonymous
If the % reactance upto the fault point is 20%, then the short circuit current will be
Last Answer : If the % reactance upto the fault point is 20%, then the short circuit current will be 5 times the full load current
Show More
3.0k views
1 answer
asked
May 8, 2018
by
anonymous
In parallel RLC resonance circuit at resonance the current will be (1) Minimum (2) Maximum (3) Zero (4) Infinite
Last Answer : In parallel RLC resonance circuit at resonance the current will be Minimum
Show More
251 views
1 answer
asked
Apr 30, 2018
by
anonymous
The armature current on symmetrical 3 phase short circuit of a synchronous machine (salient pole) (A) has q -axis current only (B) has d -axis current only (C) has both d and q axis currents (D) cannot be divided between q and d axis currents
Last Answer : The armature current on symmetrical 3 phase short circuit of a synchronous machine (salient pole) has d -axis current only
Show More
193 views
1 answer
asked
Apr 29, 2018
by
anonymous
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
Show More
1.4k views
1 answer
asked
Apr 29, 2018
by
anonymous
When one leg of parallel circuit is opened out the total current will?
Last Answer : When one leg of parallel circuit is opened out the total current will decrease.
Show More
610 views
1 answer
asked
Mar 25, 2018
by
anonymous
In which fault the maximum short circuit current occurs?
Last Answer : In three phase bolted fault the maximum short circuit occurs.
Show More
130 views
1 answer
asked
Mar 19, 2018
by
anonymous
Refer to the circuit below. The total absorbed (consumed) power is:
Show More
19 views
0 answers
I am a new student of electrical and electronic engineering, and facing some problems on sign related, kvl as well as mesh current analysis. By getting solution of these problems, I may get rid of these ... For figure 4, please just write the seven mesh equations only, solution is not needed.
Last Answer : u can assume the direction of current either in clockwise or anticlockwise...but the solution will remain same in both cases
Show More
224 views
1 answer
Last Answer : The direction of rotation of universal motor can be reversed the by reversing the flow of current through either armature winding or field winding.
Show More
247 views
1 answer
asked
Mar 20, 2018
by
anonymous
Classify hydro-electric power plants according to water flow regulation and explain in brief.
Last Answer : Classification of hydro-electric power plants according to water flow regulation of water flow:- 1. Large reservoir power plant 2. Run-off river (ROR) power plant with poundage 3. Run-off River ... depends upon rate of flow of water Initial cost is less Its purpose is to generate electricity.
Show More
82 views
1 answer
asked
Sep 7, 2018
by
anonymous
In a single-phase induction motor, the operating direction is determined by the ________ A) Rotor B) Stator C) Starting circuit D) None of these
Last Answer : In a single-phase induction motor, the operating direction is determined by the Starting circuit
Show More
127 views
1 answer
asked
Apr 29, 2018
by
anonymous
.jpg)
Last Answer : Yes DIAC can conduct in both direction.
Show More
69 views
1 answer
asked
Sep 20, 2017
by
anonymous
In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as (1) synchronous motor (2) synchronous generator (3) asynchronous motor (4) asynchronous generator
Last Answer : In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as synchronous generator
Show More
599 views
1 answer
asked
May 1, 2018
by
anonymous
.jpg)
The direction of rotation of an inverter fed 3-phase ac motor is reversed by (A) a mechanical reversing switch (B) reversing the input dc link voltage (C) operating the inverter as a rectifier (D) changing the sequence of switching
Last Answer : The direction of rotation of an inverter fed 3-phase ac motor is reversed by changing the sequence of switching
Show More
153 views
1 answer
asked
Apr 28, 2018
by
anonymous
Two non-collinear parallel equal forces acting in opposite direction?
Last Answer : Two non-collinear parallel equal forces acting in opposite direction constitute a couple.
Show More
455 views
1 answer
asked
Mar 22, 2018
by
anonymous
