A piece of wire of uniform cross section has a resistance of 0.8 ohm. If the length of the wire is doubled and its area of cross section is increased four times, what is its resistance? The temperature variation of resistance may be neglected.

Q: 5. How many electrons will pass through a conductor in 4 minutes and 30 seconds if the current is 45…

A: Given, Time, t=4 min 30 sec Current, I=450 mA

Q: Determine the resistance of a bus bar made of aluminum at 50°C if the length is 15 meters long and…

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Q: A wire with length of 2000 meters have a diameter of 0.041 cm has a resistance of 3.5 ohms is drawn…

A: Here, we have given a wire with a length of 2000 meters.  And the diameter and the resistance of the…

Q: The length and diameter of a copper wire are found to be 100 and 0.002 m, respectively. Consider…

A:

Q: Calculate the resistance of a 100 m length of wire having a uniform cross-sectional area of 0.57 mm2…

A: Resistance of wire = resistivity ×(Length of conductor/area of cross section of wire). 1mm = 1×10-3…

Q: A 40 m metallic conductor of cross-sectional area 1 mm? has a resistance of 12 O. Calculate the…

A: resistance of conductor R = length of conductor (l)conductivity (σ)×area (a) so, conductivity σ =…

Q: An annealed copper wire, 2-km long, is being used as conductor in an electrical system in an…

A: Given, Length of the annealed copper wire = 2 km=2000 m Temperature = 38°C Diameter of wire = 0.65…

Q: Problem:- Resistance of a wire at 0° Celsius is measured to be 152. If the temperature increased to…

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Q: A 1000 ft length copper wire has a resistance of 0.628 ohm at 20∘ C. Determine the resistance of the…

A: The volume of the wire remains constant even if it is stretched to on third of its cross section.…

Q: 1. Give what is ask A. The resistance of the wire increases from 40 Q at 10°C to 48.25 Q at 60°C.…

A: According to the given question, it is required ti determine the answer of the below given…

Q: 3. A metallic wire is stretched from original length of 3 m to 6 m. If the original cross-sectional…

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Q: The temperature coefficient of resistance at 30˚C of a conductor is 0.003759. If it has a resistance…

A: At T=300C , α=0.003759 At T=250C , R25=1.25 At T=400C , R40=? RT=R0(1+α(T0-TT) At T=25…

Q: If the length of a wire of resistance R is uniformly stretched to n times its original value, what…

A: Given: Wire of resistance R is uniformly stretched to n times its original value.

Q: The Electrical resistivity (p) of a material is inversely proportional to the length (L) of the…

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Q: The resistance of the wire used for telephone is 35 Q per kilometre when the weight of the wire is 5…

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Q: 1. An aluminum wire has a resistance of 80 ohms at 30 degree Celsius. Determine its resistance when…

A: We need to find out resistance at given temperature of aluminium

Q: The conductivity of Ag is about 61.4MS/m. What is the resistance of a 2m length Ag wire having 1mm…

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q: You apply a potential difference of 10.55 V between the ends of a wire that is 62.98 m in length and…

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Q: If the resistance of a copper wire is 50 N at 20°C, what is its resis- tance at 100°C (boiling point…

A: Given: For a copper wire, The resistance at temperature T1=20°C is R1=50 Ω Temperature at which…

Q: The wires of our appliances are insulated with a material mixed with rubber, which has a very high…

A: It is given that the material has a high resistivity.but the value of resistivity will depend on the…

Q: Calculate the resistance of 100 meters length of a wire having a uniform cross- sectional area of…

A: We have to find the resistance of the wire by considering all the parameters given in the questions.

Q: The resistance of a wire at 0° Celsius is measured to be 182. If the temperature increased to 25°…

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Q: A coil of aluminium wire has a resistance of 50 Q when its temperature is 0°C. Determine its…

A: we need to determine resistance at 1000c.

Q: A piece of wire of cross-sectional area 2 mm^2 has a resistance of 1.2k Find the cross-sectional…

A: In this question we will find Area of material for resistance change...

Q: A wire 50 m in length and 2 mm? in cross section has a resistance of 0.56 2. A 100-m length of wire…

A: In this question we need to find a diameter of the wire.

Q: The insulation resistance of a cable of length 10 km is 1 MQ. its resistance for 50 km length will…

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Q: A wire of length L and of circular cross section of radius r has a resistance of R ohms. Another…

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Q: If a wire is drawn out to four times its original length, by how many times would you expect its…

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Q: The wires of our appliances insulated with a material mixed with are rubber, which has a very high…

A: Length of wire, l=2.5 m  Area of cross section A=πr2r=inner radiusr=0.52r=0.25mmr=0.25×10-3 m

Q: An aluminum wire and a copper wire have the same resistance and the same length. Find the ratio of…

A: the value of the resistance R is can be calculated using the following equation R = ρLA resistivity…

Q: A bar of silicon is 4 cm long with a circular cross section. If the resistance of the bar is 240 Q…

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Q: 4. Calculate the resistance of a 100 m length of wire having a uniform cross - sectional area of…

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Q: the resistance of a copper wire at 30 c is 50 ohms. if the temperature coefficient at 0 c is…

A: Answer : The given parameters are as follows :- R30°=50 Ω temperature coefficient (α) = 0.00427…

Q: 7. What is the value of the diameter in millimeter of a certain wire having a resistance of 0.56 0,…

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: The resistance of a wire at 0° Celsius is measured to be 172. If the temperature increased to 27°…

A:

Q: A wire of length L and of circular cross section of radius r has a resistance of R ohms. Another…

A:

Q: Calculate the resistance of a 100 m length of wire having a uniform cross – sectional area of 0.02…

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Q: A wire with a length of 200 meters has a diameter of 0.052 cm is drawn so that its new diameter is…

A: Given:d1=0.052 cmd2=0.041 cmConductivity of the wire is 1.724 µΩ-cm at 20oCl1=200 m…

Q: The resistivity of a material depend on its length and its cross section area.? True False

A: Given statement: The resistivity of a material depend on its length and its cross section area.

Q: A piece of wire of cross-sectional area 2 mm^2 has a resistance of 1.2k2. Find the resistance of a…

A: Given R1 = 1.2 kohm and A1 = 2mm^2  A2 = 5mm^2 , Now find the resistance R2 ?

Q: A wire of length L and of circular cross section of radius r has a resistance of R ohms. Another…

A: Given, For first wire Length l1=L Circular cross-section radius r1=r Resistance, R1=R For second…

Q: The length and diameter of a copper wire are found to be 100 and 0.002 m. respectively. Consider…

A: In this question , copper wire length ,diameter and resistivity is given ..We have to find out…

Q: Find the resistance of an aluminum wire that has a length of 1000 m and a diameter of 1.626 mm. The…

A: In this question we need to find a resistance of the wire .

Q: The length and diameter of a copper wire are found to be 100 and 0.002 m, respectively. Consider…

A:

Q: What is the conductivity of a 2 ohm circular wire, when the length and the diameter of the wire are…

A: Conductivity

Q: Find the resistance of an aluminum wire that has a length of 1000 m and a diameter of 1.626 mm. The…

A:

Q: A wire 50 m in length and 2 mm^2 in cross section has a resistance of 0.56 ohms. A 100-m length of…

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Q: 7. What is the value of the diameter in millimeter of a certain wire having a resistance of 0.56 Q,…

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Q: 2. What is the resistance at normal room temperature of 80 m of copper wire having a diameter of…

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Types of Thyristors

With four layers of alternating P- and N- materials, a thyristor is a solid-state semiconductor device. It acts as a type of bi-stable switch and it conducts when the gate receives a current trigger and continues to conduct until the voltage is reverse biased across the device or by some means until the voltage is removed. The silicon-controlled rectifier is considered synonymous with thyristors by some sources. Thyristors are defined as more complex by other sources as it contains at least four-layer of alternating N-type and P-type substrate. They find large applications in the control of electrical power supplies, electric motor speed control, and ranging of light dimmers because thyristors can control large amounts of power supplies and voltage with a small device. The circuit symbol of the thyristor is given below.