Part A
A solenoid with 64 turns per meter, a cross sectional radius of 0.6 meters, and a length of 6 meters is connected in series to a 6 Ohm resistor and a battery. What is the time constant of the circuit in milli-seconds?
Part Aa
A 21 volt battery (DC) is connected in series to a 4 milli-henrie inductor, and a 4 ohm resistor. What is the current in the circuit, in amps, if one waits a very, very long time?
Answer
Part A A solenoid with 64 turns per meter, a cross sectional radius of 0.6 meters,...
A solenoid wound 244/m with a radius of 0.3 meters and a length of 0.4 meters is used as an inductor. It is initially connected in series to a 40 volt battery and a 9 Ohm resistor. After a time of 0.5 milli-seconds, the battery is disconnected. 0.3 milli-seconds after the battery is disconnected, what is the voltage across the inductor in volts?
2) A solenoid wound 205/m with a radius of 0.3 meters and a length of 0.3 meters is used as an inductor. It is initially connected in series to a 52 volt battery and a 10 Ohm resistor. After a time of 0.3 milli-seconds, the battery is disconnected. 0.3 milli-seconds after the battery is disconnected, what is the voltage across the inductor in volts?
2) A solenoid wound 236/m with a radius of 0.4 meters and a length of 0.4 meters is used as an inductor. It is initially connected in series to a 54 volt battery and a 7 Ohm resistor. After a time of 0.5 milli-seconds, the battery is disconnected. 0.3 milli-seconds after the battery is disconnected, what is the voltage across the inductor in volts?
2) A solenoid wound 284/m with a radius of 0.4 meters and a length of 0.3 meters is used as an inductor. It is initially connected in series to a 47 volt battery and a 7 Ohm resistor. After a time of 0.3 milli-seconds, the battery is disconnected. 0.2 milli-seconds after the battery is disconnected, what is the voltage across the inductor in volts?
4. A 2 kilo-ohm resistor is connected in series to an 3 milli-henrie inductor and a 2000 V battery (DC). After, 1.13 micro-seconds, what is the voltage across the inductor in volts? 5. An 6 kilo-ohm resistor and a inductor are connected without a battery. The initial current in the circuit is 0.32 amps. What is the voltage across the inductor in volts after exactly one time constant?
A 2 kilo-ohm resistor is connected in series to an 6 milli-henrie inductor and a 2000 V battery (DC). After, 1.22 micro-seconds, what is the voltage across the inductor in volts?
A solenoid a cross-sectional area of 5.4x10^-4 m^2, consists of 540 turns per meter, and carries a current of 0.46 A/ A 18-turn coil is wrapped tightly around the circumference of the solenoid. The ends of the coil are connected to a 1.3 (unit) resistor. Suddenly, a switch is opened, and the current in the solenoid dies to zero in time of 0.047 S. Find the average current induced in the coil.
Problem 2. Multiple-choice: (15 pts) 2-1. A solenoid has 500 turns per meter length and radius of 5 cm. When the current in the solenoid is 8 A, what is the magnetic flux though the cross-sectional area of the solenoid? (B) 6.03 x 104 T m2 (D) 3.95 x 105 T m2 (A) 5.03 x 103 Tm2 (C) 1.58 x 103 Tm2 2-2: In an RLC circuit, resistor is R-0.7 Ω, capacitor is C 0.04 F, the inductor is L...
5) A solenoid with 2 x 106 turns per meter runs through the x-y plane. It initially has a current of 7 amps running clockwise. A wire shaped like a equilateral triangle would 10 times with sides of length 2 meters is placed in the x-y plane in the solenoid. Over a a time of 0.7 seconds, the solenoid changes its current somehow which induces a (average) current in the triangle of 16 amps running counter-clockwise. If the resistance of...
1. When the current in a toroidal solenoid is changing at a rate of 0.0270 A/s , the magnitude of the induced emf is 12.6 mV . When the current equals 1.40 A , the average flux through each turn of the solenoid is 0.00320 Wb .How many turns does the solenoid have? 2. You need a transformer that will draw 33 W of power from a 220 V (rms) power line, stepping the voltage down to 12 V (rms)....