Question
Statement A: With an increase in the frequency of AC supply inductive reactance increases.
Statement B: With an increase in the frequency of AC supply capacitive reactance increase.

Answer

  1. A is true but B is false
Explanation:
$\text{Z}_\text{L}=\text{WL}\ \ \ \text{Z}_\text{C}=\frac{1}{\text{WC}}$
$\text{w}\uparrow,\text{Z}_\text{L}\uparrow\text{Z}_\text{c}\downarrow$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Identify the paramagnetic substance(a) Iron(b) Aluminium(c) Nickel  (d) Hydrogen
       
Which of the following is dependent on the intensity of incident radiation in a photoelectric experiment(a) Work function of the surface(b) Amount of photoelectric current(c) Stopping potential will be reduced(d) Maximum kinetic energy of photoelectrons
 
 
 
 
In hydrogen atom, if transition of electron from third orbit to second orbit, then wavelength of emitted radiation will be :
A $36\Omega$ galvanometer is shunted by resistance of $4\Omega.$ The percentage of the total current, which passes through the galvanometer is
Chromatic aberration of lens can be corrected by(a) Reducing its aperature  (b) Proper polishing of its two surfaces(c) Suitably combining it with another lens(d) Providing different suitable curvature to its two surfaces
 
 
 
 
Which of the following subatomic particle is lightest?
Which of the following properties of light conclusively support wave theory of light?
Two point charges + Q and + q are separated by a certain distance. If + Q > + q then in between the charges the electric field is zero at a point.
Hydrogen atom emits blue light when it changes from n = 4 energy level to the n = 2 level. Which colour of light would the atom emit when it changes from the n = 5 level to the n = 2 level(a) Red(b) Yellow(c) Green   (d) Violet
       
Energy levels $\text{A, B, C}$ of a certain atom corresponding to increasing values of energy i.e.$\mathrm{E}_{\mathrm{A}}<\mathrm{E}_{\mathrm{B}}<\mathrm{E}_{\mathrm{C}} $ if $\quad \lambda_1, \lambda_2, \lambda_3$ are the wavelengths of radiations corresponding to the transitions $C$ to $B, B$ to $A$ and $C$ to $A$ respectively, which of the following statements is correct