本课配套习题挑战模式1/5
A: 大气压的作用 |
B: 静摩擦的作用 |
C: 分子间有斥力 |
D: 同种电荷互相排斥 |
- 提示1:IOmAmui/h+aRqeaTpuWQju+8jOWhkeaWmee7s+W4puS4iuS6huWQjOenjeeUteiNt++8jOWboOWQjOenjeeUteiNt+ebuOS6kuaOkuaWpeS7juiAjOS9v+e7huS4neW8oOW8gA==
- 答案:RA==
PGRpdj7pgJrov4fmkanmk6blkI7vvIzloZHmlpnnu7PluKbkuIrkuoblkIznp43nlLXojbfvvIzlm6DlkIznp43nlLXojbfnm7jkupLmjpLmlqXku47ogIzkvb/nu4bkuJ3lvKDlvIDvvIzliJlE5q2j56GuPC9kaXY+
本课配套习题挑战模式2/5
A: 甲球带正电,乙球不带电 |
B: 甲球不带电,乙球带负电 |
C: 甲球带正电,乙球带负电 |
D: 甲、乙两球都带负电 |
- 提示1:IOeJqeS9k+W4pueUteWImeWFt+acieacieS6huWQuOW8lei9u+Wwj+eJqeS9k+eahOaAp+i0qA==
- 提示2:IOW8guenjeeUteiNt+ebuOWQuOW8le+8jOWQjOenjeeUteiNt+ebuOaOkuaWpQ==
- 答案:RA==
PGRpdj7niankvZPluKbnlLXliJnlhbfmnInmnInkuoblkLjlvJXovbvlsI/niankvZPnmoTmgKfotKjvvIzliJnkuKTnkIPkuIDlrprpg73luKbnlLXvvIzkuJTlvILnp43nlLXojbfnm7jlkLjlvJXvvIzlkIznp43nlLXojbfnm7jmjpLmlqXvvIzliJnpgInpoblE5piv5q2j56Gu55qE44CCPC9kaXY+
本课配套习题挑战模式3/5
用毛皮摩擦过的橡胶棒靠近悬吊着的带电小球时,它们互相排斥,则带电小球( )
A: 带正电 |
B: 带负电 |
C: 不带电 |
D: 无法确定 |
- 提示1:PHA+5q+b55qu5pGp5pOm6L+H55qE5qmh6IO25qOS5bim6LSf55S1PC9wPg==
- 提示2:PHA+5ZCM56eN55S16I2355u45o6S5palPC9wPg==
- 答案:Qg==
PHA+5q+b55qu5pGp5pOm6L+H55qE5qmh6IO25qOS5bim6LSf55S177yM6Z2g6L+R5Lul5ZCO5bim5ZCM56eN55S16I2377yM55u45LqS5o6S5pal77yM5YiZQumAiemhueato+ehrjwvcD4=
本课配套习题挑战模式4/5
如图所示,将甲、乙两个质量相等的带电小球,先后放入一固定的内壁光滑且绝缘的竖直平底圆管内,甲球静止在圆管底部,乙球恰好能在甲球正上方某个位置(两球未接触)保持静止,下列判断正确的是( )
A: 两小球带异种电荷 |
B: 乙球受到甲球的排斥力与乙球受到的重力是一对平衡力 |
C: 乙球受到的合力不为零,且合力方向竖直向下 |
D: 甲球对乙球的排斥力大于乙球对甲球的排斥力 |
- 提示1:PHA+5LmZ55CD6Z2Z5q2i77yM5YiZ5Y+X5Yqb5bmz6KGh77yM5LmZ55CD5Y+X6YeN5Yqb5ZKM55Sy55CD57uZ55qE5o6S5pal5YqbPC9wPg==
- 提示2:PHA+5Lik55CD5bim5ZCM56eN55S16I2377yM5LmZ55CD5omN5Lya5Y+X55Sy55CD57uZ55qE5ZCR5LiK55qE5o6S5pal5YqbPC9wPg==
- 答案:Qg==
PGRpdj7kuZnnkIPpnZnmraLvvIzliJnlj5flipvlubPooaHvvIzkuZnnkIPlj5fph43lipvlkoznlLLnkIPnu5nnmoTmjpLmlqXlipvvvIzlubbkuJTkuKTnkIPluKblkIznp43nlLXojbfvvIzkuZnnkIPmiY3kvJrlj5fnlLLnkIPnu5nnmoTlkJHkuIrnmoTmjpLmlqXlipvvvIzliJlC6YCJ6aG55q2j56GuPGJyPjwvZGl2Pg==
本课配套习题挑战模式5/5
四个悬挂着通电的小球,静止时的位置关系如图所示,下列说法正确的是( )
A: A球与C球一定带有异种电荷 |
B: B球可能带电,也可能不带电 |
C: B球与D球一定带有同种电荷 |
D: D球可能带电,也可能不带电 |
- 提示1:PHA+5ZCM56eN55S16I2355u45o6S5pal77yM5byC56eN55S16I2355u45ZC45byVPC9wPg==
- 提示2:PHA+6YCa6L+H6YCS5o6o77yM5Y2z5Y+v5rGC5b6XPC9wPg==
- 答案:RA==
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