A Series LR Circuit Consists of a Battery, Resistor, Inductor

question 47

Multiple Choice

A series LR circuit consists of a battery, resistor, inductor and a switch. When the switch is closed the circuit has a time constant of 8.0 s. If the resistance and inductance of the circuit are both doubled, what is the resulting time constant?

• A) 8.0 s
• B) 16 s
• C) 32 s
• D) 4.0 s
• E) 2.0 s

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