Question

Get 25 points


Just give me its complete step by step answer
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Answer 1

Answer:

total resistance=2.5

            given 2 ohm and 3 ohm are in series hence 2+3=5, this resistor is parallel to 5 ohm resistor hence

                         a)     total resistance=5*5/5+5=25/10=2.5

                        b)current shown by ammeter=4/2.5=1.6 A

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Answer 2

Given

• A circuit Having resistance which connected in // connection
• Having potential difference of 4v
• Connected with ammeter

To find

• Total rasistance
• Current

Solution

• The series connected in // or series both.
• so firstly we find series
• Then //

Req = $\sf\:R_1+R_2$

Req = $3\Omega+2\Omega\\\Rightarrow\:R_eq=5\Omega$

Now Adding the Req in //

$\boxed{\boxed{\sf\red{\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}...}}}$

$\boxed{\boxed{\sf\red{\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}...}}}$

$\boxed{\boxed{\sf\red{\frac{1}{R_{eq)}}=\frac{1}{5}+\frac{1}{5}}}}$

$\boxed{\boxed{\sf\red{\frac{1}{R}=\frac{2}{5}}}}$

Req = 5/2

From ohm's law

V=iReq

I= v/Req

I = 4 ÷ 5/2

I = 4 ×2/5 A

I = 8/5 A

I = 1.6A