1. (a) A current of 83.4 mA exists in a metal wire. How many electrons flow...
1. (a) A current of 83.4 mA exists in a metal wire. How many electrons flow past a given cross section of the wire in 10.8 min? _______
(b) If a certain silver wire has a resistance of 7.80 Ω at 19.0°C, what resistance will it have at 54.0°C? _______
(c) A certain laboratory experiment requires an aluminum wire of length of 21.0 m and a resistance of 2.10 Ω at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 ✕ 10−8 Ω · m.) ______ mm
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1. (a) A current of 83.4 mA exists in a metal wire. How many
electrons flow...
A current of 75.8 mA exists in a metal wire. (a) How many electrons flow past...
A current of 75.8 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.8 min? electrons (b) In what direction do the electrons travel with respect to the current? same directionopposite direction The magnitude is zero.
A current of 77.0 mA exists in a metal wire. (a) How many electrons flow past...
A current of 77.0 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.9 min? _____ electrons (b) In what direction do the electrons travel with respect to the current?
A certain laboratory experiment requires an aluminum wire of length of 34.0 m and a resistance...
A certain laboratory experiment requires an aluminum wire of length of 34.0 m and a resistance of 2.60 Ω at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 ✕ 10−8 Ω · m.) ______ mm
If a current of 71.0 mA exists in a metal wire, how many electrons flow past...
If a current of 71.0 mA exists in a metal wire, how many electrons flow past a given cross section of the wire in 8.5 minutes?
Need help with these A current of 75.7 mA exists in a metal wire. How many...
Need help with these
A current of 75.7 mA exists in a metal wire. How many electrons flow past a given cross-section of the wire in 9.4 min? The fundamental charge is 1.602 Times 10^-19 C. Birds resting on high-voltage power lines are a common sight. A certain copper power line carries a current of 122 A, and its resistance per unit length is 2.39 Times 10^-5 1 Ohm/m. If a bird is standing on this line with its feet...
If a current of 77.0 mA exists in a metal wire, how many electrons flow past...
If a current of 77.0 mA exists in a metal wire, how many electrons flow past a given cross section of the wire in 9.0 minutes? _______ electrons Sketch the direction of the current and the direction of the electrons' motion. (Do this on paper. Your instructor may ask you to turn in your work.)
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire....
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.5 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction opposite direction The magnitude is zero. Need Help? Read it Watch It 2. [-/10 Points) DETAILS SERCP11 17.4.P.010. An electric heater carries a current of 10.5 A when operating at a voltage...
A steady current of 36 mA exists in a wire. How many electrons pass any given...
A steady current of 36 mA exists in a wire. How many electrons pass any given point in the wire per second? electrons per second
A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7...
A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7 × 10-8 Ω ∙ m. How long would it have to be to have a resistance of 1.0 Ω? Answers: A. 5.9 x 106 m B. 5.9 km C. 5.9 x 104 m D. 5.9 m E. 590 m
The heating element of a coffeemaker operates at 120 V and carries a current of 5.50...
The heating element of a coffeemaker operates at 120 V and carries a current of 5.50 A. Assuming the water absorbs all of the energy converted by the resistor, calculate how long it takes to heat 0.710 kg of water from room temperature (23.0°C) to the boiling point. min Need Help? Read It Master It -/10 Points] DETAILS SERCP11 17.2.P.005. A certain laboratory experiment requires an aluminum wire of length of 27.0 m and a resistance of 4.30 at 20.0°C....
Need help with these
A current of 75.7 mA exists in a metal wire. How many electrons flow past a given cross-section of the wire in 9.4 min? The fundamental charge is 1.602 Times 10^-19 C. Birds resting on high-voltage power lines are a common sight. A certain copper power line carries a current of 122 A, and its resistance per unit length is 2.39 Times 10^-5 1 Ohm/m. If a bird is standing on this line with its feet...
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.5 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction opposite direction The magnitude is zero. Need Help? Read it Watch It 2. [-/10 Points) DETAILS SERCP11 17.4.P.010. An electric heater carries a current of 10.5 A when operating at a voltage...
The heating element of a coffeemaker operates at 120 V and carries a current of 5.50 A. Assuming the water absorbs all of the energy converted by the resistor, calculate how long it takes to heat 0.710 kg of water from room temperature (23.0°C) to the boiling point. min Need Help? Read It Master It -/10 Points] DETAILS SERCP11 17.2.P.005. A certain laboratory experiment requires an aluminum wire of length of 27.0 m and a resistance of 4.30 at 20.0°C....
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