Question

find the equivalent resistance betweena and b ​

Answer 1

Answer:

45ohm

Explanation:

=20ohms+15ohms+10ohms

=45ohms

because they r in series connection

i hope it is correct

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Answer 2

Given:-

• A circuit diagram is given to us.
• It has 3 resistance of 20Ω , 15Ω and 10Ω .

To Find:-

• The equivalent resistance b/w A and B .

Formula Used:-

When n resistances are connected in series ,

$\large{\underline{\boxed{\red{\sf{\dag R_{net}=R_1+R_2+R_3+R_4+....+R_n}}}}}$

Calculation:-

Here we can see that all the three resistances whose values are ,

• 20Ω
• 15Ω
• 10Ω

are in series , so we can simply add them in order to calculate net resistance.

So , let R be the net resistance , So :

➥ R = 20Ω + 15Ω + 10Ω .

➥ R = 45Ω

Hence the net resistance is 45Ω .

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More to know:-

Also have a look at the Ohm's Law:-

$\large{\underline{\underline{\red{\tt{\underbrace{\overbrace{\dag Ohm's Law \dagger }}}}}}}$

Ohm's law states that the if the physical conditions are remain unchanged , the thethe potential difference across the two ends of a conductor is directly proportional to the electrical current flowing through it.

Mathematically ,

$\sf{\implies V \propto I }$

$\bf{\implies V = IR }$

where R is the constant of proportionality and is called the resistance of the conductor it is a property of a conductor to resist the flow of charge through it.

[ For various V - I graphs refer to the attachment :]