A glass capillary tube with a diameter of 0.43 mm and length 8
cm is filled with a salt solution with a resistivity of 0.14 Ω · m.
What is the resistance?
Ω
Here,
radius ,r = 0.43/2 = 0.215 mm
L = 8 cm = 0.08 m
Resistivity , p = 0.14 Ohm.m
Resistance = p * L/A
Resistance = 0.14 * 0.08/(pi * (0.215 *10^-3)^2)
Resistance = 77138 Ohm
the Resistance is 77138 Ohm
A glass capillary tube with a diameter of 0.43 mm and length 8 cm is filled...
A diameter of a silver wire is 9.2 mm and length of the wire is 2510 m . a) Find the resistance of the given silver wire? b) What is the voltage drop along its length when it carries 4.0 A? (Note:The resistivity of silver is 1.59 × 10-8 Ω-m).
A device for sampling water in lakes and streams consists of a 2.25 cm diameter cylindrical tube that is 3 cm in length. The disks are placed in a wan technician to insert the sampling disk into the water. The tubes are then sealed in a container and taken back to the lab where the water is removed from the tube and analyzed. The tube is made of glass and contains 200 cylindrical pores 1 mm in diameter that run...
What is the capillary rise of ethanol in a glass tube with a 0.1 mm radius if the surface tension of ethanol is 0.032Jm2 and the density of ethanol is 0.71gcm3? Assume that the contact angle of ethanol in a glass tube is 0 degrees. Your answer should have two significant figures.
An experimental apparatus delivers a viscous fluid through a capillary tube 10 cm long with a bore diameter of 1 mm. The tube is broken, but tubing of bore diameter 2 mm is all that is available. What should be the length of the new tube in cm so that the experiment is otherwise unchanged, i.e., so that the volume flow rate remains as before?
A wire of diameter 0.750 mm and length 45.0 m has a measured resistance of 1.20 Ω. What is the resistivity of the wire?
A mercury thermometer is constructed as shown. The capillary tube has a diameter of 0.0052 cm, and the bulb has a diameter of 0.3 cm. Neglecting the expansion of the glass, find the change in height of the mercury column for a temperature change of 27 ◦C. The volume expansion coefficient for mercury is 0.000182 (◦C)−1 . Answer in units of cm.
N Determine the capillary rise of water in glass tube if the surface tension of water=0.00287 N/m and diameter =80 mm (Non-anonymous question ) (3 Points)
A mercury thermometer consists of a 0.4-mm capillary tube connected to a glass bulb. The mercury rises 7.5 cm as the temperature of the thermometer increases from 35°C to 43°C. Find the volume of the thermometer bulb.
A 1.7 cm length of tungsten filament in a small lightbulb has a resistance of 0.045 Ω. Find its diameter. (The resistivity is 5.6×10−8 Ω·m). Answer in units of mm.
A cylindrical tungsten filament 15.0 cm long with a diameter of 1.10 mm is to be used in a machine for which the temperature will range from room temperature (20 ∘C) up to 120 ∘C. It will carry a current of 13.5 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘Cis 0.0045 ∘C−1 ) Part B What will be its resistance with that field? Express your answer...