താഴെ നല്കിയിരിക്കുന്നവയിൽ ഭൗതിക മാറ്റം ഏതാണ് ?
Aഇരുമ്പ് തുരുമ്പിക്കൽ
Bആഹാരം ദഹിക്കുന്നത്
Cജലം ഘനീഭവിക്കുന്നത്
Dമെഴുകുതിരി കത്തുന്നത്
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എന്താണ് ഡാർട്ട് സിസ്റ്റം (DART SYSTEM) ?
Devices like hydraulic brakes and hydraulic lifts operate based on which physical law or principle?
Which of the following statements is/are true in case of an incandescent filament bulb?
- (a) Filament can be made of tungsten or nichrome.
- (b) The glass envelope covering the filament is filled with inactive gases such as nitrogen or argon.
- (c) Since the filament used is thin, its resistivity is very low.
- (d) The resistivity of the filament is low to allow more current.
- (e) The filament material used should have high melting point.
A magnet, when moved near a coil, produces an induced potential difference in the coil, What happens when we increase the speed of the magnet near the coil?
Three bulbs A, B and C rated 40 W, 60 W and 100 W, respectively, are connected in parallel to a voltage source of 220 V. The bulb that glows with maximum brightness is?