9. Design a series-type ohmmeter, similar to the circuit of Fig. 4-22. The movement to be used requires 0.5 mA for full-scale deflection and has an internal resistance of 50 . The internal battery has a voltage of 3.0 V. CHAP. 4 PROBLEMS The desired value of half-scale resistance is 3,000 N. Calculate (a) the value of resistors R, and R,; (b) the range of values of R,, if the battery voltage may vary from 2.7 V to 3.1 V. Use the value of R₁ as calculated in (a).

Electrical wiring is the way of integrating cables and wires to interconnected equipment such as fuses, switches, sockets, lights, fans, and so on to the main distribution board, which is a specific structure attached to the utility pole that ensures a c…