What is the diameter of a 7 m length of tungsten wire whose resistance is 3 ohms? Give your answer in mm to 3 decimal places. Your Answer: Answer

Determine the length (in mm) of a gold conductor that has a resistance of 0.019 Ω and a cross-sectional area of 2.1 x 10-9 m2.  The resistivity of gold is 2.2 x 10-8 Ω-m [round your final answer to one decimal place].  An aluminum conductor with the same length and area as in Question above would have a higher resistance than the gold conductor.  The resistivity of aluminum is 2.6 x 10-8 Ω-m. True or false

You have a simple circuit consisting of a battery and a lightbulb (you can imagine that this circuit is contained within a flashlight).  If the total potential difference provided by the batteries in this circuit is 6V, and if you measure the current to be 17.08mA, what is the resistance of the light bulb (created by the thin wire which composes the filament) in units of Ohms?

An iron wire has a diameter 0.85 mm and resistivity 9.71x 10-8 Om. What will be the length of this wire to make a resistance of 900. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = (b) Resistance of the wire (in )N =

Calculate the resistance of a wire which has a uniform diameter of 1.72mm and a length of 312.5cm if the resistivity is known to be 0.000000060hm.m. Give your answer in units of Ohms up to 3 decimals.

When a light bulb is connected to a 7.8 V battery, a current of 0.26 A passes through the light bulb.  What is the resistance (in Ω) of the filament [round your final answer to zero decimal places]?

Consider a circuit consisting of a battery (4.26 Volts) and three resistors in parallel. If the resistances of the resistors are 16.3 Ohms, 17.7 Ohms, and 33.3 Ohms, calculate the current drawn from the battery. Give you answer in milliamperes to at least 3 significant figures.

You have a simple circuit consisting of a battery and a lightbulb (you can imagine that this circuit is contained within a flashlight).  If the total potential difference provided by the batteries in this circuit is 6V, and if you measure the current to be 23.04mA, what is the resistance of the light bulb (created by the thin wire which composes the filament) in units of Ohms?

A piece of wire of cross-sectional area 2 mm^2 has a resistance of 1.2kΩ. Find the resistance of a wire, in ohms, of the same length and material if the cross-sectional area is 5 mm^2.

An iron wire has a diameter 1.6 mm and resistivity 9.71x 10-8 Qm. What will be the length of this wire to make a resistance of 80Q. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = %3D (b) Resistance of the wire (in )N =