Question

in the given electrical circuit the reading of voltmeter is

answer is actually 10v. ​

Answer 1

Answer:

10 volt is correct answer

I sent a pic of handwritten

Thanks for Reading

Answer 2

The voltage for upper resistance is 10 V.

(1) is correct option.

Explanation:

Given that,

Voltage = 20 V

Resistance = 1 ohm

R₁ and R₂ are connected in parallel

We need to calculate the equivalent resistance

Using formula of equivalent

$\dfrac{1}{R}=\dfrac{1}{R_{1}}+\dfrac{1}{R_{2}}$

Put the value into the formula

$\dfrac{1}{R}=\dfrac{1}{2}+\dfrac{1}{2}$

$R=1$

R and R₃ are connected in series

Now, The equivalent resistance

$R'=R+R_{3}$

Put the value into the formula

$R'=1+1$

$R=2\ \Omega$

We need to calculate the current

Using ohm's law

$V=IR$

$I=\dfrac{V}{R}$

Here, R = equivalent resistance

Put the value into the formula

$I=\dfrac{20}{2}$

$I= 10\ A$

According to figure,

Current divided in two parts.

So, the current in middle 2 ohm resistance is 5 A and 5 A in upper resistance.

We need to calculate the voltage for upper resistance

Using ohm's law

$V=IR$

Put the value into the formula

$V=5\times2$

$V=10\ V$

Hence, The voltage for upper resistance is 10 V.

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Topic : voltage

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