What is the mass of object if it floats in electric field

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Q. An object with a net charge of 24 µC is placed in a uniform electric field of 630 N/C, directed vertically. What is the mass of this object if it floats in this electric field?

Q. A piece of Nichrome wire has a radius of 5.00 x10-4 m. It is used in a laboratory to make a heater that uses 2.00 102 W of power when connected to a voltage source of 120 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.

Reference no: EM1360343

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