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Thought blocker
Thought blocker
For 35 ) Use formula V = I ( R + r )
Where V = voltage, I = Current, R = resistance, r = internal resistance.
so now you get it :p ?
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36)
Assumed the voltage provided is 12V. You can assume any voltage but 12V proves to be easy so I use this.
Now calculated total resistance of each arrangement, and calculated the total current in the circuit.
I will do for the D part.
R= (1/1 + 1/2 + 1/2)^ -1 = 0.5
I= V/R = 12/0.5 = 24
U
unique111
Oh yeah! Thanks!
Thought blocker
Thought blocker
But this will not be the current across ammeter. Current across ammeter will be the voltage multiplied by resistance here as it is paralled and voltage is same across all. I = V/R = 12/2 = 6.
B gives 4.5 ohms. C gives 4. A gives 2.4
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This is the best I can do here :)
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welcome :)
Any doubts left :p ?
U
unique111
I got the 35 one not 36. :/ answer is C
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no it is D
U
unique111
Last time i checked i think i saw C. I am going mad now!
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No it is D
I doubled check it darling.
U
unique111
Yeah. I checked too, it's D. Why did you find the overall I here?
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Means ?
U
unique111
You found I(current) to be 24 earlier why is thats so? I get the other comment where current is 6A but what abt the prv one?
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Which comment ?
Well its because I used 12V.
U
unique111
Thought blocker 36)
Assumed the voltage provided is 12V. You can assume any voltage but 12V proves to be easy so I use this.
Now calculated total resistance of each arrangement, and calculated the total current in the circuit.
I will do for the D part.
R= (1/1 + 1/2 + 1/2)^ -1 = 0.5
I= V/R = 12/0.5 = 24
*this one
U
unique111
*but answer comes from here right?
Thought blocker But this will not be the current across ammeter. Current across ammeter will be the voltage multiplied by resistance here as it is paralled and voltage is same across all. I = V/R = 12/2 = 6.
B gives 4.5 ohms. C gives 4. A gives 2.4
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Thought blocker
mmm am confused, wait, noww lemme solve not.maria's doubt..
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I am busy there, so I would take 20 mins there to reply her questions :) Okay. Wait, its easy man, take look to my comments, and diamgrams :)
U
unique111
^Those were your previous posts. Anyway, okay. Thank you! Wow. I finally understood a whole paper.
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Thought blocker
hmm... be back on this question 36 :) wait for 20 min :)
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