If the current is 0.5 A when a length of AWG 40 copper wire is connected to 48 V, what is the length of the wire in meters? Assume 20° C.
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A: a) Calculate the cross-sectional area of the wire. A=π4d2A=π4(1.88 mm×1 m1000 mm)2A=2.776×10−6 m2
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Q: A 270-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,210…
A: Time = 30.2207 year Or Time = 30.2 year (approximately)Explanation:
Q: A
A: We have to use the drift velocity formula.
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Q: A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the…
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Q: A 14-gauge copper wire has a diameter of 1.508 mm. What magnitude current flows in amperes when the…
A: Given data: Diameter of copper wire (d) = 1.508 mm = 1.508 × 10-3 m Drift velocity (Vd) = 0.500…
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- The heating element of a coffeemaker operates at 120 V and carries a current of 6.00 A. Assuming the water absorbs all of the energy converted by the resistor, calculate how long it takes to heat 0.680 kg of water from room temperature (23.0°C) to the boiling point. min Need Help? Read It Master ItA 30.0 m long extension cord is made from two #19 gauge copper wires. (a) What is the resistance of the wire at 200C? The diameter of the copper wire is 0.912 mm.(b) If the copper wire is replaced by an Aluminium wire of the same length, what is the diameter so that the new wire has a resistance no greater than the old?MCQP: 13-17 (page 184)
- (a) Of what material is a wire made, if it is 20.0 m long with a 0.110 mm diameter and has a resistance of 33.5 at 20.0°C? copper gold platinum silver (b) What is its resistance (in Q) at 140°C? 47.17A copper wire carries a current of 81.2 mA. (a) Find the number of electrons that flow past a given point in the wire in 10.5 minutes. electrons (b) In what direction do the electrons travel with respect to the current? The magnitude is zero.same direction opposite directionCopper has 8.5×1028 electrons per cubic meter. How many electrons are there in a 50.0 cm length of 12-gauge copper wire (diameter 2.05 mm)? If a current of 2.10 A is flowing in the wire, what is the average drift speed of the electrons along the wire? (There are 6.24×1018 electrons in 1 coulomb of charge.)