Question

You have built a device that measures the temperature outside and displays it on a dial as a measure of how far away from room temperature outside is. The way the dial works is that a needle with a charged ball on the end is placed between two charged parallel plates. The strength of the uniform electric field between the plates is proportional to the outside temperature. Given that the charged ball on the needle has a charge of -2.55 HC and the needle can be represented as a string with tension 0.350 N, and is at an angle of 25°,consider the following ig free-body diagram What is the mass of the object? Is there an electric field component in the y direction? Do you need to include both tension components when calculating the mass? g What is the magnitude of the electric field? How can Newton's second law help you to find a relationship between the tension in the string and the electric field? N/C

Answer 1

Concept used:- here we use Newton's law of motion and force on a charged particle in an electric field a follows,

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