iTeachChem•15mo ago

Electricity doubt

I tried using KCL and Ohm's Law but still couldn't solve this. Please give me a detailed solution for this question.

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iTeachChem Helper•10/26/24, 4:07 PM

@Gyro Gearloose

iTeachChem Helper•10/26/24, 4:07 PM

Note for OP

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waste of space•10/26/24, 5:12 PM

total resistance = 10 Ω

waste of space•10/26/24, 5:12 PM

total V = 10 V

waste of space•10/26/24, 5:12 PM

current = V/R = 1 A

waste of space•10/26/24, 5:13 PM

since V=iR

waste of space•10/26/24, 5:13 PM

so about the 4 Ω resistor the voltage drop would be 1×4 = 4 V

waste of space•10/26/24, 5:13 PM

so the voltmeter reading would be 4 V

IMTHEFOOLOP•10/26/24, 5:19 PM

How can it be 10 ohm? We have to consider resistance of V too right? If not, then why?

Cakey BotAPP•10/26/24, 5:19 PM

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IMTHEFOOLOP•10/26/24, 5:20 PM

Yo please don't mind that it was accidental

IIMTHEFOOL How can it be 10 ohm? We have to consider resistance of V too right? If not, the...

727•10/26/24, 5:35 PM

V tends to infinity so we don’t consider it that is why volt meters are connected parallel

727•10/26/24, 5:36 PM

1/4 + 1/∞ =1/R_net

727•10/26/24, 5:36 PM

See how it will just come as 1/4

727•10/26/24, 5:37 PM

In some cases they may mention the resistance of volt meter then just use the parallel addition formula

iq21dumbaahh•10/26/24, 7:29 PM

Req = 6+4 = 10 ohms

iq21dumbaahh•10/26/24, 7:29 PM

V=10

iq21dumbaahh•10/26/24, 7:30 PM

I =1A by ohms law

iq21dumbaahh•10/26/24, 7:31 PM

potential difference across 4 ohm resistor = current flowing through circuit *4 ohm

iq21dumbaahh•10/26/24, 7:31 PM

V' = 1×4=4V

iq21dumbaahh•10/26/24, 7:31 PM

ur in fiitjee right? as i have the same modules

7727 V tends to infinity so we don’t consider it that is why volt meters are connecte...

iTeachChem•10/27/24, 12:21 AM

awesome explanation.

IMTHEFOOLOP•10/27/24, 1:53 AM

Thank you everyone

Iiq21dumbaahh ur in fiitjee right? as i have the same modules

IMTHEFOOLOP•10/27/24, 1:53 AM

Yeah

IMTHEFOOLOP•10/27/24, 1:55 AM

+solved @727 @waste of space @iq21dumbaahh @iTeachChem

iTeachChem Helper•10/27/24, 1:55 AM

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Electricity doubt

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