Question

A resistor-inductor circuit with a time constant of 3.4 seconds has a total inductance of 450 H. What amount of resistance is in the circuit? a) 1530 Ω b) 153 Ω c) 132 Ω d) 74 Ω 2. In the circuit described in question #1, a voltage source is used to power the circuit such that the rate of change in current with time is 0.034 A/s at a particular instant. What is the potential difference across the inductor at that moment? a) 15.3 V b) 13235 V c) 4.5 V d) 9.0 V 3. Refer once again to the circuit from question #1. If the energy stored in the inductor is 5.2 J at steady state, what is the maximum current? a) 0.15 A b) 0.72 A c) 0.31 A d) 0.44 A

          A resistor-inductor circuit with a time constant of 3.4 seconds has a total inductance of 450 H. What amount of resistance is in the circuit? 
a) 1530 Ω 
b) 153 Ω 
c) 132 Ω 
d) 74 Ω

2. In the circuit described in question #1, a voltage source is used to power the circuit such that the rate of change in current with time is 0.034 A/s at a particular instant. What is the potential difference across the inductor at that moment? 
a) 15.3 V 
b) 13235 V 
c) 4.5 V 
d) 9.0 V

3. Refer once again to the circuit from question #1. If the energy stored in the inductor is 5.2 J at steady state, what is the maximum current? 
a) 0.15 A 
b) 0.72 A 
c) 0.31 A 
d) 0.44 A

Added by Joseph P.

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