12.0-V battery, and inductor, a 16.2-Ω resistor, a 40.0-Ω resistor, and another resistor of unknown resistance, R. After the switch in the figure below has been closed for a long time, the current in the inductor is 0.237 A. Suppose the inductor is a solenoid which has 394 turns, a circular cross-section of radius 0.0296 m, and a length of 84.7 cm. (1) Find the inductance L of the inductor. (2) Find the value of the resistance, R. (3) Find the energy stored in the inductor a long time after the switch is closed
The circuit shown below consists of a 12.0-V battery, and inductor, a 16.2-Ω resistor, a 40.0-Ω resistor, and another resistor of unknown resistance, R. After the switch in the figure below has been closed for a long time, the current in the inductor is 0.237 A. Suppose the inductor is a solenoid which has 394 turns, a circular cross-section of radius 0.0296 m, and a length of 84.7 cm.
(1) Find the inductance L of the inductor.
(2) Find the value of the resistance, R.
(3) Find the energy stored in the inductor a long time after the switch is closed.
(4) Find the time, t, required for the current in the battery to increase from 0 to 0.0825 A.
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(4) Find the time, t, required for the current in the battery to increase from 0 to 0.0825 A