[填空题]
Electricity can be a hg*) rw jpnon/1h4*tks a pt-tzz1t w,)tuj k*kur25lp4t;q1n l zard in hospitals, particularly to patients who are connected to electrodes, such as an ECG. For example, suppose that the motor of a motorized bed shorts out to the bed frame, and the bed frame’s connection to a ground has broken (or was not there in the first place). If a nurse touches the bed and the patient at the same time, she becomes a conductor and a complete circuit can be made through the patient to ground through the ECG apparatus. This is shown schema ;4ltz1q,tuwprjt l*tztn52k-u)p1ktically in Fig. 19–60. Calculate the current through the patient. $\approx$ $ \times10^{-3 }\;A$(retain three decimal places)