Explain the following. (a) Why is the tungsten used almost exclusively for filament of electric ...

Channel:
PW Solutions
Subscribers:
453,000
Published on ● Video Link: https://www.youtube.com/watch?v=qe9Fb1YlBbA


Duration: 9:04
17 views
0

Explain the following.
(a) Why is the tungsten used almost exclusively for filament of electric lamps?
(b) Why are the conductors of electric heating devices, such as bread-toasters and electric irons, made of an alloy rather than a pure metal?
(c) Why is the series arrangement not used for domestic circuits?
(d) How does the resistance of a wire vary with its area of cross-section?
(e) Why are copper and aluminium wires usually employed for electricity transmission?
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live



Other Videos By PW Solutions


2022-12-02Phloem is composed of 4 elements, namely, ............, phloem parenchyma and phloem fibres.
2022-12-02The cost function \( C(x) \) of a firm is given by \( C(x)=2 x^{2}-4 x+5 \). Find the marginal c...
2022-12-02Describe plasmolysis.
2022-12-02\( \mathrm{KMnO}_{4} \) рдХреЗ рддреБрд▓реНрдпрд╛рдВрдХреА рднрд╛рд░ рдХреЗ рд╡рд┐рд╖рдп рдореЗрдВ рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рдХреМрди-рд╕рд╛ рдХрдерди рд╕рддреНрдп рд╣реИ? (A) рдХ...
2022-12-02Application-Based Questions P In the graph given below, identify the states of W. solution at th...
2022-12-02Explain sublimation.
2022-12-02Define osmosis.
2022-12-02Define diffusion.
2022-12-02Describe phagocytosis.
2022-12-02Define molarity.
2022-12-02Explain the following. (a) Why is the tungsten used almost exclusively for filament of electric ...
2022-12-02Define retentivity.
2022-12-02Define regelation. PE
2022-12-02Find the curvilinear area enclosed between the parabola \( y^{2}=4 a x \) and its evolute.
2022-12-02Define evaporation. (IV)
2022-12-02Define reverberation.
2022-12-02Define echo. Hillo: (ID)
2022-12-02Define fertilization. (E)
2022-12-02Define amu. e: \( \equiv 8 \) (IV)
2022-12-02Define gene.
2022-12-02Define linkage.


Tags:
pw