Question

Plzzzz help me....... ​

Answer 1

${\mathfrak{\underline{\purple{\:\:\: Given:-\:\:\:}}}}$

$\:\:\:\:\bullet\:\:\:\sf{3\; resistors, \:each\: of \:15\Omega \:are \:connected \:in\: parallel }$

${\mathfrak{\underline{\orange{\:\:\:To \:Find:-\:\:\:}}}}$

$\:\:\:\:\bullet\:\:\:\sf{ Net \:resistance}$

${\mathfrak{\underline{\red{\:\:\: Calculation:-\:\:\:}}}}$

☯ Finding the net resistance of a circuit

$\dashrightarrow\:\: \sf{ \dfrac{1}{R_{net}}= \dfrac{1}{R_1} + \dfrac{1}{R_2} + \dfrac{1}{R_3} ... ... \dfrac{1}{R_n} }$

$\dashrightarrow\:\: \sf{ \dfrac{1}{R_{net}} = \dfrac{1}{15} + \dfrac{1}{15} + \dfrac{1}{15} }$

$\dashrightarrow\:\: \sf{ \dfrac{1}{R_{net}} = \dfrac{\cancel{3}}{\cancel{15}} }$

$\dashrightarrow\:\: \sf{\dfrac{1}{R_{net}} = \dfrac{1}{5}}$

$\dashrightarrow\:\:{\boxed{\sf{ R_{net} = 5 \Omega}}}$

Answer 2

${\sf{\underline{\orange{\:\:\: Given:-\:\:\:}}}}$

$❥\sf{3\; resistors, \:each\: of \:15\Omega \:are \:connected \:in\: parallel }$

${\sf{\underline{\pink{\:\:\:To \:Find:-\:\:\:}}}}$

$❥\sf{ Net \:resistance}$

${\sf{\underline{\purple{\:\:\: Solution:-\:\:\:}}}}$

❥ Finding the net resistance of a circuit

$\rightarrow\:\: \sf{ \dfrac{1}{R_{net}}= \dfrac{1}{R_1} + \dfrac{1}{R_2} + \dfrac{1}{R_3} ... ... \dfrac{1}{R_n} }$

$\rightarrow\:\: \sf{ \dfrac{1}{R_{net}} = \dfrac{1}{15} + \dfrac{1}{15} + \dfrac{1}{15} }$

$\rightarrow\:\: \sf{ \dfrac{1}{R_{net}} = \dfrac{\cancel{3}}{\cancel{15}} }$

$\rightarrow\:\: \sf{\dfrac{1}{R_{net}} = \dfrac{1}{5}}$

$\rightarrow\:\:{{\sf{ R_{net} = 5 \Omega}}}$