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Why do timelines countdown to zero and then count up?
Timelines typically countdown to zero to signify the completion of a specific duration or event, often creating a sense of anticipation or urgency. Once they reach zero, counting up can indicate the elapsed time since the event started or the duration of a project, allowing for easy tracking of progress or performance. This format effectively communicates the transition from a deadline to an active phase, such as an event's duration or post-launch metrics.
What is effect of Electro magnetic field on human health?
This is always being studied. For frequencies below microwaves there appear to be virtually zero effects.
What is polar cusp?
The polar cusps, located above each pole, are funnel-shaped areas with near zero magnetic field magnitude in the Earth's magnetic field where solar wind particles have direct access to the Earth's ionosphere.
What is number 700000000000000000000000000 in words?
* the answer to, what is 700,000,000,000,000,000,000,000,000 in words is: SEVEN HUNDRED SEPTILLION * Seven zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero zero
Why current lag and potemtial lead in an inductor.?
because of flux produced in coil of inducterAnswerThe potential difference (not 'potential') induced into a pure inductive component is proportional to the rate of change of current. The greatest rate of change of current occurs when the current waveform passes through zero (i.e. is at its steepest angle). So the voltage is maximum when the current is passing through zero -which means that the current is lagging the voltage by 90 degrees.
Why an induction motor will never run at synhoronous speed?
An induction motor relies on low-frequency currents induced in the rotor by the difference in speed between the rotor and the rotating magnetic field. At sychronous speed the induced current is zero therefore the torque is also zero.
Conservative Nature of induced electric field?
The induced electric field tends to oppose the change in magnetic flux that causes it, in accordance with Faraday's law of electromagnetic induction. This conservative nature of the induced electric field ensures that the total electromagnetic field obeys the principle of conservation of energy. This property is fundamental for understanding electromagnetic phenomena and plays a crucial role in various applications, such as transformers and electric generators.
If a conductor carrying an alternating current were formed into a coil the magnetic field that is generated?
would induce a current in the coil itself, creating a self-induced electromagnetic field. This field would interact with the original field, leading to a stronger magnetic effect and potentially affecting nearby conductors or devices. The coil's shape and number of turns would also impact the strength and direction of the induced field.
What does -5 signify?
It means five less than zero.
Is the potential zero if the electric field is zero?
Yes, if the electric field is zero, then the electric potential is also zero.
What are the three ways in which voltage can be induced in a wire?
Voltage can never be induced in a straight open wire because flux through a wire is zero but a coil made up of a wire can have induced voltage. Methods Move a magnet to and fro through the coil, the magnitude can be changed by altering the relative velocities between them Move the coil relative to he still magnet Place the coil in a time varying magnetic field such that the flux linked through the coil changes with respect to time Place the coil tn an uniform magnetic field and alter its area with respect to time
If an electrical current passes through a conductor what two things are generated?
If an electrical current passes through a conductor, there is an induced voltage (because no conductor has perfectly zero ohms), resulting in power dissipation, and there is a magnetic field, which can interact with other conductors in the vicinity of the first.
What is zero lift coefficient of drag?
For no lift, The induced drag will be zero. However, there will still be drag due to viscous forces and pressure forces.
Can you find a point where the electric field is zero?
Yes, the electric field can be zero at points where the net charge is zero or where the electric field vectors cancel each other out.
Why was number zero introduced?
The Babylonians were the first to use the number zero in the 3rd century BC. It was used as a placeholder to signify that there were none of something.
Why induced emf alternates?
Here is A Simple answer for this question as you know that emf is induced in the conductor when there is change of flux linkage to the conductor which gives rise to the inducement of electric field in the conductor that provide drift velocity to the electrons hence emf is induced in the conductor but the last only till the change in flux in progress and becomes zero as soon as the flux linkages becomes constant hence we summaraize that for inducement of current there must be change in change of flux hence change in electric field that gives rise to allternating emf.
Under what condition is a vector field considered conservative if the curl of the field is zero?
A vector field is considered conservative when its curl is zero.
