MCQ
With increase in frequency of an A.C. supply, the inductive reactance.
- Adecreases
- Bincreases directly with frequency
- Cincreases as square of frequency
- Ddecreases inversely with frequency
✓
Answer
- increases directly with frequency
Explanation:
The inductive reactance $\text{Xl}=\omega\text{L}$
Hence, $\text{X}_1\propto\omega$
As frequency increases $\rightarrow\omega$
Therefore, inductive reactance increases with frequency.
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
Consider a light beam incident from air to a glass slab at Brewster's angle as shown in Fig. A polaroid is placed in the path of the emergent ray at point P and rotated about an axis passing through the centre and perpendicular to the plane of the polaroid.
Kirchoff’s first law, i.e., S i = 0 at a junction, deals with the conservation of:
The points resembling equal potentials are
|
(a) P and Q |
(b) S and Q |
(c) S and R |
(d) P and R |
Through a semiconductor, an electric current is due to drift of
|
(a) Free electrons |
(b) Free electrons and holes |
|
(c) Positive and negative ions |
(d) Protons |
Under what condition the force acting on the charge particle moving in the magnetic field maximum?
The Current in resistance R at resonance is.
Electroscope is used:
For the same speed, de Broglie wavelength.
has half life 5700 years. At the end of 11400 years, the actual amount left is
|
(a) 0.5 of original amount |
(b) 0.25 of original amount |
|
(c) 0.125 of original amount |
(d) 0.0625 of original amount |
A uniform wire of resistance $50\Omega$ is cut into 5 equal parts. These parts are now connected in parallel. The equivalent resistance of the combination is:
→