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What relation between electric current and drift velocity?
The drift velocity of free electrons in a conductor is directly proportional to the magnitude of the electric current flowing through the conductor. This means that as the current increases, the drift velocity of the electrons also increases. The relationship is described by the equation I = nAvq, where I is the current, n is the number density of charge carriers, A is the cross-sectional area of the conductor, v is the drift velocity, and q is the charge of the charge carrier.
What will an ammeter show if the circuit is broken?
Zero. No current is flowing in an open circuit. The ammeter will display an amount of 0 amps because there is no longer any current once the circuit has been broken. An ammeter measures current.
What is the effect on the drift velocity of free electrons by decreasing the length and the temperature of wire?
As we know , resistance(R) is directly proportional to length(L) of conductor and resistence(R) is inversely proportional to current (I) and I=nAqv (v is drift velocity) So , if we decrease the length of the conductor , resistance of the conductor will decrease and current(I) will increase and drift velocity of free electrons will increase . And as we know resistance and temperature have direct relation so , by decreasing the temperature resistence will decrease and current will increase . So drift velocity will increase .
Will any current flow at temperatures near absolute zero?
Yes, current can still flow at temperatures near absolute zero due to quantum mechanical effects such as superconductivity.
Why it is not possible to measure the drift speed for electron by timing their travel along the conductor?
It's difficult to accurately measure drift speed by timing electrons because individual electrons move randomly at high speeds, making it hard to track their motion. Also, electrons in a conductor have different velocities and directions, making it challenging to calculate an average drift speed. The collective drift speed of electrons in a current can be measured indirectly by observing the overall current flow in the conductor.
What is the difference between longshore drift and longshore current?
Current is with water and drift is moving sediments in the current
What is instrumental drift?
Instrumental drift is the systematic time variation of the instrumental zero value. (A small) temporal variation of the zero reading of the gravimeter.
Does drift current depends on carrier concentration?
no,drift current depends upon electric field where as carrier concentration lead to diffusion current
What is meant by drift current in diode?
when ever the external voltage is given the movement of charge carriers produce a current i.e drift current
What is the process by which beach sediment moves down the beach with the current?
the process in which beach sediment move down a beach with the current
What is the value of current at zero volts?
Zero volts produces zero current.
What is the name of a weak current?
drift
Is the north Atlantic drift a surface current or a deep water current?
a surface current
Is the north pacific drift a warm or cool current?
its a warm current
Can diffusion current and drift current can exist in a Semi conductors?
Yes.
A very fast current is a?
swift drift
Is longshore drift the cause or effect of a longshore current?
Longshore drift is the process of sediment moving along a beach due to wave action. It is driven by the longshore current, which is a current that flows parallel to the shoreline. Therefore, longshore drift is the result or effect of a longshore current.
