What is the current taken by the display connected in Fig. 3.12, when the digit 3 is showing? If in Fig. 3.12 a segment current of approximately 4 mA was required, what value of resistor would need...

What is the current taken by the display connected in Fig. 3.12, when the digit 3 is

showing?

If in Fig. 3.12 a segment current of approximately 4 mA was required, what value of

resistor would need to be introduced in series with each segment?