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DK2ZA > TECH 15.10.06 10:43l 18 Lines 548 Bytes #999 (99) @ WW
BID : J76AJXDB0FOR
Read: GUEST DL1LCA OE7FMI
Subj: physics problem
Path: DB0FHN<DB0FOR
Sent: 061015/1031z @:DB0FOR.#BAY.DEU.EU [Forchheim/JN59MO] DP6.00 $:J76AJXDB0FO
From: DK2ZA @ DB0FOR.#BAY.DEU.EU (Helmut)
To: TECH @ WW
Here is one problem from a german physics contest for 16 year olds:
You have three resistors R1 = 10 Ohm, R2 = 20 Ohm and R3 = 30 Ohm.
Each resistor can absorb at most 5 Watts. You have only one source
of electrical power, the voltage of which can be adjusted to any
necessary value.
How do the resistors have to be connected so that when voltage is
applied the total absorbed power is a maximum?
How many watts will that be?
Have fun and vy 73 de Helmut, DK2ZA
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