A circuit consists of a resistor $R_1$ and an inductor $L$ connected in series. The circuit is driven by a voltage source $V(t) = V_0 \sin omega t$. The impedance $Z$ of the circuit is given by $Z = \sqrt{R_1^2 + (L omega)^2}$. If the resis ance $R_1$ is doubled to $2R_1$, what is the new impedance $Z_{new}$?

Question

A circuit consists of a resistor $R_1$ and an inductor $L$ connected in series. The circuit is driven by a voltage source $V(t) = V_0 \sin omega t$. The impedance $Z$ of the circuit is given by $Z = \sqrt{R_1^2 + (L omega)^2}$. If the resis	ance $R_1$ is doubled to $2R_1$, what is the new impedance $Z_{new}$?

Accepted Answer

\sqrt{$ 2R_1 $^2 + (L omega)^2}

Post Utme Osustech 2017 Physics Question 22

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