Reactance, resistance, & impedance (what's the difference?) | Alternating current | Khan Academy

Opposition offered by capacitors and inductors to alternating currents is called reactance. Reactance values depend on frequency while resistances don't. Reactances resist currents without dissipating power, unlike resistors.
Inductive reactance increases with frequency and inductance. Capacitive reactance decreases with frequency and capacitance. Impedance represents total opposition provided by reactance and resistance.
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Created by Mahesh Shenoy

[@anushiagrawal2103]

The analogy is superb

[@mountcarmel7116]

Thank you sir, you brought a light on the darkness while i was scrambling to do my physics lab.

[@cricketing7693]

Voice is so smooth 👂👂👂

[@anilsurjewala3606]

Awesome

[@mrnnambi3583]

Sir the peak value of current is more than the peak value of voltage....is that the same always?
Can current peak be less than voltage peak?

[@jimmoriarty6964]

Inductive reactance:
LIMITS high frequency, ALLOWS low frequency
capacitive rreaactance:
LIMITS low frequency, ALLOWS high frequency

[@shazrizvi4343]

Awesome

[@gabrielaochoa3875]

Finally I understanded!!! Really thanks

[@nitheshhariharan6538]

*understood, but yea

[@theultimatebeast6597]

Link for the previous lesson pls

[@comi.d7873]

Here i= 1/wL for inductor and i=wC for capacitance, but my teacher did it the other way around,i.e i=wL and i=1/wC is that the same thing? since i get same result or?

[@rudratiwari1758]

no I =omega x L and I = (omega x C)^-1.....I=wL and I=1/wC

[@being_dashanan]

03:18😂😂😂

[@NIKHILSingh-yc7kn]

Everybody like any good educational video thx

[@mohamedismail6273]

What

[@k10633]

This is so amazingly explained, remains imprint in my mind. Can you help me model a biological cell as a circuit.

[@Skyrime007]

Your statement of capacitance and current on c- circuit is wrong .

[@thauolar186]

You are not showing that true impedance has the complex J in it too

[@nishok3502]

sir can I know how the energy is lost due to a inductive or capacitive reactance , meanwhile in a resistor they are dissipated as heat

[@PrabhjotSingh_24]

They are also made of some material which has it's own resistance....they lose energy in the form of heat but way less than a resistor ideal...I think!

[@nishok3502]

@@PrabhjotSingh_24 NO i dont talk about about the energy lost by resistance , rather i talk about energy lost by reactance

[@PrabhjotSingh_24]

@@nishok3502 ok

[@thanzeharitha8114]

Energy needn’t necessarily be ‘lost’. Capacitors and inductors store energy as electrical potential energy and magnetic energy respectively. No dissipation.

[@lightspeed2014]

Actually it's not lost, energy is consumed by both the inductor and capacitor and stored as magnetic and electric fields respectively in one quarter cycle, in the next quarter cycle this same energy is released by both devices

[@shambhavisingh982]

Thank you sir

[@LinusWilliams-m4d]

The 👌 best

[@ayushchoubey635]

Thanks a lot sir

[@geminiliveshapethefuture1785]

Thank you

[@wonderfulvamsi]

wow

[@b.srinivas9567]

Tq sir

[@aliffazimhamzah1715]

What’s is Vo?

[@hannahsahasra8917]

Peak voltage

[@Saadkhan-th4bz]

Vo=max voltage, Vs=instantaneous voltage