(a) Find the current I in the circuit of Figure (a).

(b) An ammeter with an internal resistance of $1 \Omega$ is inserted in the network to measure ${I}^{\prime}$ as shown in Figure (b). What is ${I}^{\prime}$ ?

(c) Calculate the percent error introduced by the meter as

$\left| \frac {I- {I}^{\prime} }{ I} \right| \times 100$ %

Question

(a) Find the current I in the circuit of Figure (a).

(b) An ammeter with an internal resistance of $1 \Omega$ is inserted in the network to measure ${I}^{\prime}$ as shown in Figure (b). What is ${I}^{\prime}$ ?

(c) Calculate the percent error introduced by the meter as

$\left| \frac {I- {I}^{\prime} }{ I} \right| \times 100$ %

Accepted Answer

(a) [latex]40 = 24 \parallel 60\Omega[/latex],

[latex]i= \frac{4}{16 + 24}=100[/latex] mA

(b) [latex]{i}^{\prime}= \frac{4}{16 +1+ 24}=97.56[/latex] mA

(c) % error =[latex]\frac{0.1 - 0.09756}{0.1} imes[/latex] 100% =2.44%

Question : (a) Find the current I in the circuit of Figure (a). (b) An ...