本题目来源于试卷: Electric Currents，类别为 IB物理学
[问答题]
When a flashlight is ok6;x)x) sqfstq .e.pl+2)r4cp yky jwir 4z.;bma7w rperated, what is being used up: battery current, battery voltage, battery energy, battery power, or battery resistance? E+ acwby p4kz4i;r.my2j r 7rw)xplain.
参考答案:
Battery energy is what is being “used up”. As charges leave the battery terminal, they
have a relatively high potential energy.
Then as the charges move through the flashlight bulb, they lose
potential energy. The battery uses a
chemical reaction to replace the potential energy of the charges, by lowering
the battery’s chemical potential energy.
When a battery is “used up”, it is unable to give potential energy to
charges.
本题详细解析:
暂无
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