two electric bulb P and q have resistance ratio 1:2 and they conect in series accros battery find power dissipation ratio in these bulb and battery of 10 volt
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Resistance(R1) of bulb P be x.
Resistance(R2) of bulb Q be 2x.
We know that same voltage passes across the two bulbs
.
. .power1 V^2 ÷R1
----------- = -------------
power2 V^2÷R2
= V^2 R2
------ × ------
R1 V^2
= 2
----
. 1
. . The required ratio is 2:1.
Resistance(R2) of bulb Q be 2x.
We know that same voltage passes across the two bulbs
.
. .power1 V^2 ÷R1
----------- = -------------
power2 V^2÷R2
= V^2 R2
------ × ------
R1 V^2
= 2
----
. 1
. . The required ratio is 2:1.
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