[填空题]
Consider the network of res)a g d-8nq.byst r4ed:istors shown in (Fig. Below)aq4bsv6 d ji;cb9nk ck1z3z:g.9hb8tpu, uu2 . Answer qualitatively:
in8c2: kj9dk4busv,6c 9;bta3 uq1u.zgbh pz (a) What happens to the voltage across each resistor when the switch S is closed? $V_1$ $V_2$ $V_3$ $V_4$
(b) What happens to the current through each when the switch is closed? $V_1$ $V_2$ $V_3$ $V_4$
(c) What happens to the power output of the battery when the switch is closed?
(d) Let $R_1=R_2=R_3=R_4=125\Omega$ and $V\,=\,22.0\,V$. Determine the current through each resistor before and after closing the switch. Are your qualitative predictions confirmed? Notice that the current through each of the parallel resistors is half of the total current, within the limits of significant figures. $I_1$ = A $I_3$ = A $I_4$ A Notice that the current through each of the parallel resistors is one third of the total current, within the limits of significant figures.$I_1$ = A $I_2$ = A $I_3$ = A $I_4$ = A
