A) different pitch but same quality
B) same pitch but different quality
C) same pitch and same quality
D) different pitch and different quality.
Correct Answer: B
Solution :
\[V=100\,V\] \[i=1\,\text{amp}\] \[V=iR\] \[R=\frac{100}{1}\] \[=100\,\Omega \] \[{{V}_{a.c.}}=100\,V\] \[Z=\sqrt{{{R}^{2}}+X_{L}^{2}}\] \[i=0.5\,\text{amp}\] \[V=\sqrt{({{R}^{2}}+X_{L}^{2})}\] \[\frac{1000}{5}=\sqrt{{{R}^{2}}+X_{L}^{2}}\] \[{{(200)}^{2}}={{100}^{2}}+{{X}_{L}}^{2}\] \[40,000-10,000={{X}_{L}}^{2}\] \[\sqrt{30,000}={{X}_{L}}\] \[{{X}_{L}}=173.2\,\Omega \] \[{{X}_{L}}=2\pi f\,L\] \[173.2=2\pi \times 50L\] \[L=0.551\,H\]You need to login to perform this action.
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