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What 2 Factors Determine How Much Amperage Will Flow?
The two main factors that determine how much amperage will flow in a circuit are the voltage of the source supplying the electricity and the resistance in the circuit. According to Ohm's Law, the amperage (current) in a circuit is equal to the voltage divided by the resistance (I = V/R).
Three equal resistors connected in series across a voltage source dissipate a power of 10W what sould be the power desipated if same resistors are connected in parallel?
If three equal resistors are connected in parallel, the equivalent resistance will be one-third of the resistance in series. This lower resistance will result in a higher current flowing through the resistors when connected in parallel compared to when they are in series. Therefore, the power dissipated by the resistors in parallel will be greater than 10W.
When equal amounts of energy are transferred to or from equal masses of different substances the substances will undergo different changes in temperature because of their different...?
substances
Why is there no flow of electric current between 2 objects of equal resistance?
I am not sure how the two objects of equal resistance are supposed to be connected. But for a current to flow, for example across a resistor, there must be a voltage difference between the terminals of this resistor.
What describes the charge of an atom before any electrons are transferred?
The charge of an atom before any electrons are transferred is neutral. This means the number of protons in the nucleus is equal to the number of electrons surrounding the nucleus, resulting in a balanced charge.
What will happen when source resistance equals load restiance?
when source resistance and load resistance are equal maximum power is transfered
What will happen in case of AC circuit for maximum power transfer theorem?
According to maximum power transfer theorem for ac circuits maximum power is transferred from source to load when the load resistance is equal to the magnitude of source impedance. The source imoedance is the thevenin equivalent impedance across the load
Does the maximum power transfer condition states maximum efficiency condition?
Answer Pmax=E^2/(4xRs) The maximum power is transferred when the load impedance is the complex conjugate of the source impedance. For a dc circuit or a purely resistive circuit, the load resistance equals the source resistance.
What is the condition for maximum transfer theorem?
For maximum power transfer the load resistance should be equal to the source resistance.An often misunderstood theorem. It applies strictly where one wishes maximum power transfer.It was misused for example in early power systems by trying to match the generator resistance to the load resistance.And it has little application in audio systems, where Power is much less important than Distortion. [for least distortion, the output impedance of the amplifier should be less than 10% of the impedance of the load.]
How can convert voltage source into current source?
Take the internal series resistance of the voltage source and make it the internal parallel resistance of the current source. Then compute using Ohm's law the current of the current source to be equal to the maximum current the original voltage source could supply a short circuit load. Note: the two sources are equivalent.
What are the advantages and disadvantages of maximum power transfer theorem?
The Maximum Power Transfer Theorem is not so much a means of analysis as it is an aid to system design. The maximum amount of power will be dissipated by a load resistance when that load resistance is equal to the Thevenin/Norton resistance of the network supplying the power.
How neutral brings the power to the source?
By creating a loop of equal resistance
What is the maximum velocity reached by a falling object that occurs when the resistance of the medium is equal to the force due to gravity?
Its called terminal velocity
Why internal resistance of an ideal voltage source is zero and an ideal current source is infinty?
Current source means current generator for a circuit. An ideal current source gives all current to the circuit, but practically a current source does n't give all current to the circuit, instead, a source resistor is connected in parallel to the current source to indicate the current drop.
A battery of emf 2V is connected to an external resistance which is equal to its internal resistance and then find potential difference across the external resistance?
As the source impedance is equal to load impedance, it is assumed that both the resistances are in series. This distributes the whole voltage equally between both the impedance. Hence the PD across external resistance will be 1V.
The maximum velocity reached by a falling object that occurs when the resistance of the medium is equal to the force due to gravity?
The maximum velocity reached by a falling object when air resistance is equal to gravitational force is called terminal velocity. At this point, the net force on the object is zero, resulting in constant velocity. The object will not accelerate further due to the balancing forces.
What is the maximum velocity reached by a falling object that occurs when the resistance of the medium is equal to force due to gravity?
The maximum velocity reached by a falling object when the resistance of the medium is equal to the force due to gravity is called terminal velocity. At terminal velocity, the object no longer accelerates and reaches a constant speed as the drag force balances out the force of gravity acting on the object.
