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| Both sides previous revision Previous revision | Next revisionBoth sides next revision | ||
| 184_notes:examples:week7_wire_dimensions [2017/10/04 13:38] – [Solution] tallpaul | 184_notes:examples:week7_wire_dimensions [2017/10/04 13:41] – [Solution] tallpaul | ||
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| ====Solution==== | ====Solution==== | ||
| - | Let's start with segment 1. The power dissipated through the segment is just $$P_1=I_1 \Delta V_1=$$ | + | Let's start with segment 1. The power dissipated through the segment is just $$P_1=I_1 \Delta V_1 = 5 \text{ W}$$ |
| + | The electric field is constant since the wire is uniform with respect to the rest of the segment, so we get $$E_1 = \frac{\Delta V_1}{L_1} = 0.5 \text{ V/m}$$ | ||