Answer Posted / iamdon
Incendensent lamp(bulb) works on this simple principle.
When current flow through the filament, it gets heated due
to Cu loss in filament owing to high resistance of filament
(made uo of Tunguston).We know that a heating body emits
radiation. When the temperature of radiating body exceed a
certain value,the radiation comes in visible spectrum of light
and the filament looks glowing.The intensity of glowing depends
upon the temperature of filament which in turn depends upon
the amount of current flowing through the filament which in
turn depends upon the voltage applied across the filament.
For getting full brightness,rated voltage is required
across the filament otherwise bulb will glow less brighter.
(You must have seen the dim light bulb in low voltage.This
is due to above reason).
Since a single battery is not capable of supplying rated
current at 230V.So we need to make series connections of many
batteries for getting required 230V.
Even if we connect a single battery across the bulb.It will
glow megrely since its radiation is not in the visible spectrum
due to less heating. so we cant notice the glow.
Author:arbelectbit@yahoo.com
Is This Answer Correct ? | 12 Yes | 0 No |
Post New Answer View All Answers
What is MSL designation of a motor and same may be provided in details.
I PURCHASED A DEISEL GENARATOR SET OF AVR TYPE& RATING 125KVA BUT SOME TIMES THE OUTPUT VOLTAGE IS FLUCTUATING WHAT ARE THE PROBABLE REASONS GIVE ME
In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.
Single phase and threephase power calculation
How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.
how pt is using
What is the difference between a Root Locus plot and a Bode plot?
what is PWM in IGBT and how it works for drive.?
what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?
we use capister for power factor. when we use capaciter in dg circuit than defect dg. can we use capaciter bank for dg circuit
If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?
how to wiring it with contactor and timer together
while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?
How will you define capacitance?
at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?