Which has a higher resistance- a 50W bulb or a 2.5W bulb and how many times?
Answers
Answered by
127
GIVEN ;-
⇒ A 50 watts bulb
⇒ A 2 .5 watts bulb
TO FIND ;-
⇒ Which has higher resistance and by how much ?
SOL ;-
'' ⇒ A less power has always the higher resistance ''
⇒ 2. 5 watts has more resistance than 50 watts
-------------------------------------------------------------------------------------------
And also we know that -'' Power is inversely proportional to the resistance''
⇒ Power = voltage × voltage / resistance
⇒ Rα1/p
Let us take 50 watt as R -1 and resistor - 2 as 2. 5 watt bulb
Now let us find how many times it has more resistance
R - 1/ r - 2 ⇒ 50 / 2.5 ⇒20 times.
⇒⇒ ⇒So 2.5 watts is 20 times more than 50 watts of bulb.
----------------------------------------------------------------------------------------------------
⇒ A 50 watts bulb
⇒ A 2 .5 watts bulb
TO FIND ;-
⇒ Which has higher resistance and by how much ?
SOL ;-
'' ⇒ A less power has always the higher resistance ''
⇒ 2. 5 watts has more resistance than 50 watts
-------------------------------------------------------------------------------------------
And also we know that -'' Power is inversely proportional to the resistance''
⇒ Power = voltage × voltage / resistance
⇒ Rα1/p
Let us take 50 watt as R -1 and resistor - 2 as 2. 5 watt bulb
Now let us find how many times it has more resistance
R - 1/ r - 2 ⇒ 50 / 2.5 ⇒20 times.
⇒⇒ ⇒So 2.5 watts is 20 times more than 50 watts of bulb.
----------------------------------------------------------------------------------------------------
Answered by
7
Answer:
hope it helps you
Attachments:
Similar questions
Social Sciences,
7 months ago
Geography,
7 months ago
World Languages,
7 months ago
Biology,
1 year ago