MCQ
Choke coil works on the principle of
- ATransient current
- ✓Self induction
- CMutual induction
- DWattless current
✓
Answer
Correct option: B.
Self induction
b
The choke coil works because it acts as an inductor. When the current passing through changes, as $AC$ currents do, it typically creates a magnetic field in the coil that works against that current. This property, known as inductance.
The choke coil works because it acts as an inductor. When the current passing through changes, as $AC$ currents do, it typically creates a magnetic field in the coil that works against that current. This property, known as inductance.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The apparent depth of a needle lying at the bottom of the tank, which is filled with water of refractive index $1.33$ to a height of $12.5\,cm$ is measured by a microscope to be $9.4\,cm$. If water is replaced by a liquid of refractive index $1.5$ upto the same height. What distance would the microscope have to be moved to focus on the needle again ?......$cm$
→$X-$ ray beam of intensity ${I_0}$ passes through an absorption plate of thickness $d$. If absorption coefficient of material of plate is $\mu $, the correct statement regarding the transmitted intensity $I$ of $X-$ ray is
→$X-$ rays are produced in laboratory by
→The binding energy of deuteron ${ }_1^2 H$ is 1.112 MeV per nucleon and an $\alpha$-particle ${ }_2^4 He$ has a binding energy of 7.047 MeV per nucleon. Then in the fusion reaction ${ }_1^2 H +{ }_1^2 H \rightarrow{ }_2^4 He + Q$, the energy Q released is
→When ${90^{Th}}^{228}$ transforms to ${83^{Bi}}^{212}$ , then the number of the emitted a- and b-particles is, respectively
→Points A and B are situated perpendicular to the axis of a 2cm long bar magnet at large distances X and 3X from its centre on opposite sides. The ratio of the magnetic fields at A and B will be approximately equal to
If the dielectric constant and dielectric strength be denoted by $k$ and $x$ respectively, then a material suitable for use as a dielectric in a capacitor must have
→How much length of a very thin wire is required to obtain a solenoid of length ${l_0}$ and inductance $L$
→An inductor coil stores $U$ energy when $i$ current is passed through it and dissipates energy at the rate of $P$. The time constant of the circuit, when this coil is connected across a battery of zero internal resistance is
→What is the net force on the square coil
