Discussion :: RL Circuits  True or False (Q.No.2)
2.  The impedance of the circuit in the given circuit is 110 . 

Answer: Option B Explanation: No answer description available for this question.

Vipul said: (Mar 6, 2014)  
z = sqrt[(xl1+xl2)^2+r^2]. = sqrt[(50+20)^2 + 40^2. = sqrt[4900+1600]. = 80.62 ohm. 
Simran said: (Jun 27, 2015)  
Why there is a square of resistance? 
Asma Asghar Janjua said: (Jun 18, 2016)  
I think so, in this case, the answer is false. The one end of the resistor becomes is floating so it is not included in finding impedance r = 0. Z = sqrt[(50+20) ^2]. Z = 70 ohm. 
Rao said: (Jan 4, 2021)  
It should be Z= √[R^2 + (XlXC) ^2]. 
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