云南省腾冲八中2011-2012学年上学期高二期中考试物理卷

适用年级：高二
试卷号：211777

试卷类型：期中
试卷考试时间：2012/2/8

1.单选题(共2题)

电量为3×10 ^-6 C的负电荷,放在电场中A点，受的电场力大小为6×10 ^-3 N，方向水平向右，则将电量为6×10^-6C的正电荷放在 A 点，受到的电场力为

A．1.2×10^-2 N，方向水平向右

B．1.2×10^-2 N，方向水平向左

C．1.2×10² N，方向水平向右

D．1.2×10 ² N，方向水平向左

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如右图所示，因线路故障，按通K时，灯L₁和L₂均不亮，用电压表测得U_ab=0，U_bc=4V，U_cd=0．由此可知断路处为( )

A．灯L₁	B．灯L₂
C．变阻器	D．不能确定

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At the Spring Festival, you can see many lights _______ in the trees on _______ side of the square.

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At the Spring Festival, you can see many lights _______ in the trees on _______ side of the square.

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At the Spring Festival, you can see many lights _______ in the trees on _______ side of the square.

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At the Spring Festival, you can see many lights _______ in the trees on _______ side of the square.

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试卷分析