A cylindrical tungsten filament 16.0 cm long with a diameter of 1.20 mm is to be used in a machine for which the temperature will range from room temperature (20⁰ C) up to 120⁰ C. It will carry a current of 14.0 A at all temperatures ( Resistivity of tungsten at 20⁰ C is 5.25×10−8Ωm, the temperature coefficient of resistivity at 20⁰ C is 0.0045 ⁰ C-1) a) What will be the maximum electric field in this filament? Express your answer using two significant figures.
b) What will be its resistance with that field? Express your answer using two significant figures.
c) What will be the maximum potential drop over the full length of the filament? Express your answer using two significant figures.

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.