If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be a. lower than the mercury in the vessel, and shaped like the inside of a bowl. b. higher than the mercury in the vessel, and shaped like the inside of a bowl. c. lower than the mercury in the vessel, and shaped like the outside of an umbrella. d. higher than the mercury in the vessel, and shaped like the outside of an umbrella.

Answer : Lower than the mercury in the vessel, and shaped like the outside of an umbrella.

Explanation :  We know that the capillary action, In this the inter-molecular force within the mercury exceed those between the glass and the mercury

Hence, a convex meniscus form and capillary action work in reverse.

So, if a small diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be lower than the mercury in the vessel, and shaped like the outside of an umbrella.

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

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