Question

When a 12 V battery is connected across an unknown resistor , there is a current of 2.5 mA in the circuit. Calculate the value of resistance in the resistor.​

Answer 1

here is your answer....

Answer 2

$\Large{\underline{\underline{\mathfrak{Answer :}}}}$

Tge resistance if the resistor is 4800 $\Omega$.

$\rule{200}{2}$

$\Large{\underline{\underline{\mathfrak{Explanation :}}}}$

Using Ohm's Law

$\large{\underline{\boxed{\bf{V = IR}}}}$

Where,

• V = 12v
• I = 2.5 mA = 2.5 $\times 10^{-3}$ A.

$\sf{\implies R = \dfrac{V}{I}} \\ \\ \sf{\implies R = \dfrac{12}{2.5 \times 10^{-3}}} \\ \\ \sf{\implies R = 4800}$

$\large{\underline{\boxed{\bf{R = 4,800 \: \Omega}}}}$