Home
Class 12
PHYSICS
How does an inductor behave in a dc circ...

How does an inductor behave in a dc circuit?

Text Solution

Verified by Experts

An inductor, having a pure resistance R and a self-inductance L, has an impedance , `Z=sqrt(R^2+omega^2L^2)`. Here, `omega=2pif` where f=frequency of the electric source. Naturally, f=0 for dc circuits, so, `omega=0` and Z=R
This means that the inductor behaves as a pure resistance in dc-circuits, whereas its inductance L plays no role.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise NCERT TEXTBOOK QUESTIONS WITH ANSWER HINT|33 Videos
  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise NCERT TEXTBOOK QUESTIONS WITH ANSWER HINT (MCQ-1)|4 Videos
  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|33 Videos
  • CHHAYA PUBLICATION|Exercise EXAMPLE|1 Videos
  • ATOM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|18 Videos

Similar Questions

Explore conceptually related problems

How does an LC oscillations behave in a closed LC circuit which includes a resistance?

If the circuit is connected to a 110 V, 12 kHz supply? Hence, explain the statement that a capacitor is a conductor at very high frequencies. Compare this behaviour with that of a capacitor in a dc circuit after the steady state.

Knowledge Check

  • How does alkaline taste?

    A
    Tasteless
    B
    Bitter
    C
    Acidic
    D
    Raw or bitter
  • Similar Questions

    Explore conceptually related problems

    What is a solar cell? How does a solar diode behave as a battery?

    How does water stabilise an ion?

    An applied voltage signal consists of a superposition of a dc voltage and an ac voltage of high frequency. The circuit consists of an inductor and a capacitor in series. Show that the dc signal will appear across C and the ac signal across L.

    Which of the following does not represent electrical power in a circuit?

    How does aspirin act as an analgesic?

    How does NaH react with water?

    Although pure silicon is an insulator, then how does it behave as semi-conductor on heating ?