1/ if a student makes a cylindrical resistor of the dimensions of 2.7 mm long with...
1/ if a student makes a cylindrical resistor of the dimensions of 2.7 mm long with radius of 3.1 mm out of a material with festivity of 38671.1 E(-8) OHMM. how much resistance will it have ?
2/ there are resistors in the parallel. 9.3 ohm and 8.2 ohm. what is the total resistance of these resistance ?
3/ how much current will pass through a resistor of 3.8 ohm if an electric potential of 3.2 V is applied for it
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1/ if a student makes a cylindrical resistor of the dimensions
of 2.7 mm long with...
Chapter 26, Problem 064 A cylindrical resistor of radius 2.7 mm and length 3.0 cm is...
Chapter 26, Problem 064 A cylindrical resistor of radius 2.7 mm and length 3.0 cm is made of material that has a resistivity of 2.8 x 10-5 2.m. What are (a) the magnitude of the current density and (b) the potential difference when the energy dissipation rate in the resistor is 1.0 W? (a) Number Units (b) Number Units SHOW HINT
(4 points) A cylindrical resistor is made of a material with 4 x 1027 mobile electrons...
(4 points) A cylindrical resistor is made of a material with 4 x 1027 mobile electrons per cubic meter and an electron mobility of 6 × 10 5 m/s per V/m. The resistor is 1.2 cm long with a radius of 0.35 mm. The potential difference from one end of the resistor to the other is 2.6 volts. 6, (a) What is the magnitude of the electric field in the resistor? (b) What is the average drift speed of the...
7. A cylindrical solenoid 40 cm long with a radius of 5 mm has 300 tightly...
7. A cylindrical solenoid 40 cm long with a radius of 5 mm has 300 tightly wound turns of wire uniformly distributed along its length. Around the middle of the solenoid is a two-turn rectangular loop 3 cm by 2 cm made of resistive wire having a resistance of 150 ohms. 2012 One microsecond after connecting the loose wire to the battery to form a series circuit with the battery and a 20-ohm resistor, what is the magnitude of the...
to A very long cylindrical shell of inner radius a and outer radius 2a is made...
to A very long cylindrical shell of inner radius a and outer radius 2a is made of a conducting material of conductivity o= kr, where k is a constant and r is measured perpendicularly from the axis of the shell. A potential difference AV is applied across the inner and outer surfaces of the shell, with the inner surface at the higher potential. (a) What is the resistance dR per unit length of the cylinder, for a thin cylindrical shell...
71. A student makes a homemade resistor from a graphite pencil 5.00 cm long, where the graphite i...
71. A student makes a homemade resistor from a graphite pencil 5.00 cm long, where the graphite is 0.05 mm in diameter. The resistivity of the graphite is 5 ρ 1.38 10 / m − = ×Ω . The homemade resistor is place in series with a switch, a 10.00-mF capacitor and a 0.50-V power source. (a) What is the RC time constant of the circuit? (b) What is the potential drop across the pencil 1.00 s after the switch...
PHY1520 Final Review Problems 1) The current density in a cylindrical wire of radius R = 3.0 mm is uniform across the cross section of the wire and is J = 3.0 × 106A/m2, (a) What is the current th...
PHY1520 Final Review Problems 1) The current density in a cylindrical wire of radius R = 3.0 mm is uniform across the cross section of the wire and is J = 3.0 × 106A/m2, (a) What is the current through the outer portion of the wire between radial distances R/2 and R (b) What is the current through the entire cross section of the wire? 2) A conducting loop of radius 1.50 cm and resistance 8 x 10-6Ω is perpendicular...
(2) Five identical bulbs (numbered 1-4) are arranged as shown (a) Rank the brightness of from...
(2) Five identical bulbs (numbered 1-4) are arranged as shown (a) Rank the brightness of from BRIGHTEST to DIMMEST (b) What would happen to the brightness of Bulb 1 if the wire was cut between bulbs 2 and 3? Explain 5 (c) You have 3 bulbs, some wire, and a battery. Draw two circuits: One circuit must have have all 3 bulbs be brighter than the ones in the other circuit (3) Find the the current and potential difference for...
Experiment 7 - The Resistor Capacitor Circuit Learning Objectives: Understand the short and long time behavior...
Experiment 7 - The Resistor Capacitor Circuit Learning Objectives: Understand the short and long time behavior of circuits containing capacitors. Understand the and the mathematical relationshin between the current through the circuit as a function time, resistance, capacitance, and potential difference 1. Understanding the models for the behavior of a capacitor in a circuit A capacitor is a device that stores energy in a circuit as potential energy in an electric field. In the simple circuit drawn on the night,...
1. The headlights on an automobile are 125 cm apart. At what distance will the lights appear to b...
1. The headlights on an automobile are 125 cm apart. At what distance will the lights appear to be just resolvable to a person whose nocturnal pupils are 4.5 mm in 2. Assume the range of pupil variation during adaptation of a normal eye is from 2.0 to 7.1 mm. What is the corresponding range of distances over which it can detect 3. Two stars make an angle of 1 x 10-3 radians at the eye of an observer. A...
1- Capacitor B has half of the capacitor A. Compare the load of capacitor A with...
1- Capacitor B has half of the capacitor A. Compare the load of capacitor A with capacitor B charge when the two capacitors remain connected in series with a battery for a long time. 2- A capacitor immersed in the air has capacitance equal to 12.5 μF when the potential difference at its terminals is 24.0V. If we insert a constant material dielectric equal to 3.75 between the capacitor plates, filling the space between them completely, (a) how much energy...
Chapter 26, Problem 064 A cylindrical resistor of radius 2.7 mm and length 3.0 cm is made of material that has a resistivity of 2.8 x 10-5 2.m. What are (a) the magnitude of the current density and (b) the potential difference when the energy dissipation rate in the resistor is 1.0 W? (a) Number Units (b) Number Units SHOW HINT
(4 points) A cylindrical resistor is made of a material with 4 x 1027 mobile electrons per cubic meter and an electron mobility of 6 × 10 5 m/s per V/m. The resistor is 1.2 cm long with a radius of 0.35 mm. The potential difference from one end of the resistor to the other is 2.6 volts. 6, (a) What is the magnitude of the electric field in the resistor? (b) What is the average drift speed of the...
7. A cylindrical solenoid 40 cm long with a radius of 5 mm has 300 tightly wound turns of wire uniformly distributed along its length. Around the middle of the solenoid is a two-turn rectangular loop 3 cm by 2 cm made of resistive wire having a resistance of 150 ohms. 2012 One microsecond after connecting the loose wire to the battery to form a series circuit with the battery and a 20-ohm resistor, what is the magnitude of the...
to A very long cylindrical shell of inner radius a and outer radius 2a is made of a conducting material of conductivity o= kr, where k is a constant and r is measured perpendicularly from the axis of the shell. A potential difference AV is applied across the inner and outer surfaces of the shell, with the inner surface at the higher potential. (a) What is the resistance dR per unit length of the cylinder, for a thin cylindrical shell...
PHY1520 Final Review Problems 1) The current density in a cylindrical wire of radius R = 3.0 mm is uniform across the cross section of the wire and is J = 3.0 × 106A/m2, (a) What is the current through the outer portion of the wire between radial distances R/2 and R (b) What is the current through the entire cross section of the wire? 2) A conducting loop of radius 1.50 cm and resistance 8 x 10-6Ω is perpendicular...
(2) Five identical bulbs (numbered 1-4) are arranged as shown (a) Rank the brightness of from BRIGHTEST to DIMMEST (b) What would happen to the brightness of Bulb 1 if the wire was cut between bulbs 2 and 3? Explain 5 (c) You have 3 bulbs, some wire, and a battery. Draw two circuits: One circuit must have have all 3 bulbs be brighter than the ones in the other circuit (3) Find the the current and potential difference for...
Experiment 7 - The Resistor Capacitor Circuit Learning Objectives: Understand the short and long time behavior of circuits containing capacitors. Understand the and the mathematical relationshin between the current through the circuit as a function time, resistance, capacitance, and potential difference 1. Understanding the models for the behavior of a capacitor in a circuit A capacitor is a device that stores energy in a circuit as potential energy in an electric field. In the simple circuit drawn on the night,...
1. The headlights on an automobile are 125 cm apart. At what distance will the lights appear to be just resolvable to a person whose nocturnal pupils are 4.5 mm in 2. Assume the range of pupil variation during adaptation of a normal eye is from 2.0 to 7.1 mm. What is the corresponding range of distances over which it can detect 3. Two stars make an angle of 1 x 10-3 radians at the eye of an observer. A...
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